diff --git a/error-prone-contrib/src/main/java/tech/picnic/errorprone/refasterrules/ReactorRules.java b/error-prone-contrib/src/main/java/tech/picnic/errorprone/refasterrules/ReactorRules.java
index 66e391cebcf..c99c77482a5 100644
--- a/error-prone-contrib/src/main/java/tech/picnic/errorprone/refasterrules/ReactorRules.java
+++ b/error-prone-contrib/src/main/java/tech/picnic/errorprone/refasterrules/ReactorRules.java
@@ -4,7 +4,6 @@
 import static com.google.errorprone.BugPattern.SeverityLevel.WARNING;
 import static com.google.errorprone.refaster.ImportPolicy.STATIC_IMPORT_ALWAYS;
 import static java.util.function.Function.identity;
-import static java.util.stream.Collectors.toList;
 import static org.assertj.core.api.Assertions.assertThat;
 import static reactor.function.TupleUtils.function;
 
@@ -20,7 +19,6 @@
 import java.time.Duration;
 import java.util.Comparator;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.Callable;
 import java.util.function.BiConsumer;
@@ -29,7 +27,6 @@
 import java.util.function.Function;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
-import java.util.stream.Stream;
 import org.jspecify.annotations.Nullable;
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Flux;
@@ -1306,33 +1303,4 @@ Duration after(StepVerifier.LastStep step, Duration duration) {
       return step.verifyTimeout(duration);
     }
   }
-
-  /** Avoid accidental blocking with {@link Flux#toStream()}. */
-  // XXX: The alternative may lose some performance due to
-  // buffering and prefetching
-  static final class FluxToStream<T> {
-    @BeforeTemplate
-    Stream<T> before(Flux<T> flux) {
-      return flux.toStream();
-    }
-
-    @AfterTemplate
-    Stream<T> after(Flux<T> flux) {
-      return flux.collect(toList()).block().stream();
-    }
-  }
-
-  /** Avoid accidental blocking with {@link Flux#toIterable()}. */
-  // XXX: The alternative may lose some performance due to buffering and prefetching
-  static final class FluxToIterable<T> {
-    @BeforeTemplate
-    Iterable<T> before(Flux<T> flux) {
-      return flux.toIterable();
-    }
-
-    @AfterTemplate
-    List<T> after(Flux<T> flux) {
-      return flux.collect(toList()).block();
-    }
-  }
 }
diff --git a/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestInput.java b/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestInput.java
index 16c3f9f198e..25596c5cc3d 100644
--- a/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestInput.java
+++ b/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestInput.java
@@ -12,8 +12,6 @@
 import java.util.Optional;
 import java.util.concurrent.Callable;
 import java.util.function.Supplier;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.test.StepVerifier;
@@ -25,7 +23,7 @@
 final class ReactorRulesTest implements RefasterRuleCollectionTestCase {
   @Override
   public ImmutableSet<?> elidedTypesAndStaticImports() {
-    return ImmutableSet.of(assertThat(0), Collectors.class, HashMap.class, ImmutableMap.class);
+    return ImmutableSet.of(assertThat(0), HashMap.class, ImmutableMap.class);
   }
 
   ImmutableSet<Mono<?>> testMonoFromSupplier() {
@@ -404,12 +402,4 @@ Duration testStepVerifierLastStepVerifyErrorMessage() {
   Duration testStepVerifierLastStepVerifyTimeout() {
     return StepVerifier.create(Mono.empty()).expectTimeout(Duration.ZERO).verify();
   }
-
-  Stream<Integer> testFluxToStream() {
-    return Flux.just(1, 2, 3).toStream();
-  }
-
-  Iterable<Integer> testFluxToIterable() {
-    return Flux.just(1, 2, 3).toIterable();
-  }
 }
diff --git a/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestOutput.java b/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestOutput.java
index 679a27e1d77..7c471e53145 100644
--- a/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestOutput.java
+++ b/error-prone-contrib/src/test/resources/tech/picnic/errorprone/refasterrules/ReactorRulesTestOutput.java
@@ -14,8 +14,6 @@
 import java.util.Optional;
 import java.util.concurrent.Callable;
 import java.util.function.Supplier;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.function.TupleUtils;
@@ -28,7 +26,7 @@
 final class ReactorRulesTest implements RefasterRuleCollectionTestCase {
   @Override
   public ImmutableSet<?> elidedTypesAndStaticImports() {
-    return ImmutableSet.of(assertThat(0), Collectors.class, HashMap.class, ImmutableMap.class);
+    return ImmutableSet.of(assertThat(0), HashMap.class, ImmutableMap.class);
   }
 
   ImmutableSet<Mono<?>> testMonoFromSupplier() {
@@ -393,12 +391,4 @@ Duration testStepVerifierLastStepVerifyErrorMessage() {
   Duration testStepVerifierLastStepVerifyTimeout() {
     return StepVerifier.create(Mono.empty()).verifyTimeout(Duration.ZERO);
   }
-
-  Stream<Integer> testFluxToStream() {
-    return Flux.just(1, 2, 3).collect(Collectors.toList()).block().stream();
-  }
-
-  Iterable<Integer> testFluxToIterable() {
-    return Flux.just(1, 2, 3).collect(Collectors.toList()).block();
-  }
 }