diff --git a/docs/apispec-docs/src/main/scala/sttp/tapir/docs/apispec/schema/TapirSchemaToJsonSchema.scala b/docs/apispec-docs/src/main/scala/sttp/tapir/docs/apispec/schema/TapirSchemaToJsonSchema.scala
deleted file mode 100644
index 34392f80a4..0000000000
--- a/docs/apispec-docs/src/main/scala/sttp/tapir/docs/apispec/schema/TapirSchemaToJsonSchema.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-package sttp.tapir.docs.apispec.schema
-
-import sttp.apispec.{Schema => ASchema}
-import sttp.tapir.internal.IterableToListMap
-import sttp.tapir.{Schema => TSchema}
-import scala.collection.immutable.ListMap
-
-object TapirSchemaToJsonSchema {
-  def apply(
-      schema: TSchema[_],
-      markOptionsAsNullable: Boolean,
-      addTitleToDefs: Boolean = true,
-      metaSchema: MetaSchema = MetaSchemaDraft04,
-      schemaName: TSchema.SName => String = defaultSchemaName
-  ): ASchema = {
-
-    val asKeyedSchemas = ToKeyedSchemas(schema).drop(1)
-    val keyedSchemas = ToKeyedSchemas.uniqueCombined(asKeyedSchemas)
-
-    val keysToIds = calculateUniqueIds(keyedSchemas.map(_._1), (key: SchemaKey) => schemaName(key.name))
-    val toSchemaReference = new ToSchemaReference(keysToIds, keyedSchemas.toMap, refRoot = "#/$defs/")
-    val tschemaToASchema = new TSchemaToASchema(schemaName, toSchemaReference, markOptionsAsNullable)
-    val keysToSchemas = keyedSchemas.map(td => (td._1, tschemaToASchema(td._2, allowReference = false))).toListMap
-    val schemaIds = keysToSchemas.map { case (k, v) => k -> ((keysToIds(k), v)) }
-
-    val nestedKeyedSchemas = schemaIds.values
-    val rootApiSpecSchemaOrRef: ASchema = tschemaToASchema(schema, allowReference = false)
-
-    val defsList: ListMap[SchemaId, ASchema] =
-      nestedKeyedSchemas.collect {
-        case (k, nestedSchema: ASchema) if nestedSchema.$ref.isEmpty =>
-          (k, nestedSchema.copy(title = nestedSchema.title.orElse(if (addTitleToDefs) Some(k) else None)))
-      }.toListMap
-
-    rootApiSpecSchemaOrRef.copy(
-      `$schema` = Some(metaSchema.schemaId),
-      `$defs` = if (defsList.nonEmpty) Some(defsList) else None
-    )
-  }
-}
diff --git a/docs/apispec-docs/src/test/scala/sttp/tapir/docs/apispec/schema/TapirSchemaToJsonSchemaTest.scala b/docs/apispec-docs/src/test/scala/sttp/tapir/docs/apispec/schema/TapirSchemaToJsonSchemaTest.scala
deleted file mode 100644
index 121ee2a3ef..0000000000
--- a/docs/apispec-docs/src/test/scala/sttp/tapir/docs/apispec/schema/TapirSchemaToJsonSchemaTest.scala
+++ /dev/null
@@ -1,121 +0,0 @@
-package sttp.tapir.docs.apispec.schema
-
-import io.circe.literal._
-import io.circe.syntax._
-import org.scalatest.EitherValues
-import org.scalatest.Inside
-import org.scalatest.OptionValues
-import org.scalatest.flatspec.AnyFlatSpec
-import org.scalatest.matchers.should.Matchers
-import sttp.apispec.circe._
-import sttp.apispec.{Schema => ASchema}
-import sttp.tapir.Schema.annotations.title
-import sttp.tapir._
-import sttp.tapir.generic.auto._
-
-class JsonSchemasTest extends AnyFlatSpec with Matchers with OptionValues with EitherValues with Inside {
-  behavior of "TapirSchemaToJsonSchema"
-
-  it should "represent schema as JSON" in {
-    // given
-    case class Parent(innerChildField: Child)
-    case class Child(childId: String, childNames: List[String])
-    val tSchema = implicitly[Schema[Parent]]
-
-    // when
-    val result: ASchema = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = true)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","required":["innerChildField"],"type":"object","properties":{"innerChildField":{"$$ref":"#/$$defs/Child"}},"$$defs":{"Child":{"title":"Child","required":["childId"],"type":"object","properties":{"childId":{"type":"string"},"childNames":{"type":"array","items":{"type":"string"}}}}}}"""
-
-  }
-
-  it should "handle top-level simple schemas" in {
-    // given
-    val tSchema = implicitly[Schema[List[Int]]]
-
-    // when
-    val result = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = true)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","type":"array","items":{"type":"integer","format":"int32"}}"""
-  }
-
-  it should "handle repeated type names" in {
-    // given
-    object Childhood {
-      case class Child(age: Int, height: Option[Int])
-    }
-    case class Parent(innerChildField: Child, childDetails: Childhood.Child)
-    case class Child(childName: String)
-    val tSchema = implicitly[Schema[Parent]]
-
-    // when
-    val result = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = true)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","required":["innerChildField","childDetails"],"type":"object","properties":{"innerChildField":{"$$ref":"#/$$defs/Child"},"childDetails":{"$$ref":"#/$$defs/Child1"}},"$$defs":{"Child":{"title":"Child","required":["childName"],"type":"object","properties":{"childName":{"type":"string"}}},"Child1":{"title":"Child1","required":["age"],"type":"object","properties":{"age":{"type":"integer","format":"int32"},"height":{"type":["integer", "null"],"format":"int32"}}}}}"""
-  }
-
-  it should "handle options as not nullable" in {
-    // given
-    case class Parent(innerChildField: Child)
-    case class Child(childName: Option[String])
-    val tSchema = implicitly[Schema[Parent]]
-
-    // when
-    val result = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = false)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","required":["innerChildField"],"type":"object","properties":{"innerChildField":{"$$ref":"#/$$defs/Child"}},"$$defs":{"Child":{"title":"Child","type":"object","properties":{"childName":{"type":"string"}}}}}"""
-
-  }
-
-  it should "handle options as nullable" in {
-    // given
-    case class Parent(innerChildField: Child)
-    case class Child(childName: Option[String])
-    val tSchema = implicitly[Schema[Parent]]
-
-    // when
-    val result = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = true)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","required":["innerChildField"],"type":"object","properties":{"innerChildField":{"$$ref":"#/$$defs/Child"}},"$$defs":{"Child":{"title":"Child","type":"object","properties":{"childName":{"type":["string","null"]}}}}}"""
-  }
-
-  it should "use title from annotation or ref name" in {
-    // given
-    @title("MyOwnTitle1")
-    case class Outer(inner: Parent)
-
-    case class Parent(innerChildField: Child)
-
-    @title("MyOwnTitle3")
-    case class Child(childName: Option[String])
-
-    val tSchema = implicitly[Schema[Outer]]
-
-    // when
-    val result = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = true)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","title":"MyOwnTitle1","required":["inner"],"type":"object","properties":{"inner":{"$$ref":"#/$$defs/Parent"}},"$$defs":{"Parent":{"title":"Parent","required":["innerChildField"],"type":"object","properties":{"innerChildField":{"$$ref":"#/$$defs/Child"}}},"Child":{"title":"MyOwnTitle3","type":"object","properties":{"childName":{"type":["string","null"]}}}}}"""
-  }
-
-  it should "NOT use generate default titles if disabled" in {
-    // given
-    case class Parent(innerChildField: Child)
-
-    @title("MyChild")
-    case class Child(childName: Option[String])
-
-    val tSchema = implicitly[Schema[Parent]]
-
-    // when
-    val result = TapirSchemaToJsonSchema(tSchema, markOptionsAsNullable = true, addTitleToDefs = false)
-
-    // then
-    result.asJson.deepDropNullValues shouldBe json"""{"$$schema":"http://json-schema.org/draft-04/schema#","required":["innerChildField"],"type":"object","properties":{"innerChildField":{"$$ref":"#/$$defs/Child"}},"$$defs":{"Child":{"title":"MyChild","type":"object","properties":{"childName":{"type":["string","null"]}}}}}"""
-  }
-}