Convert IssuingCardPinService to Kotlin

stripe/src/main/java/com/stripe/android/EphemeralKey.kt

@@ -14,7 +14,7 @@ import org.json.JSONObject
  * for more details on ephemeral keys.
  */
 @Parcelize
-internal data class EphemeralKey internal constructor(
+data class EphemeralKey internal constructor(
     /**
      * Represents a customer id or issuing card id, depending on the context
      */
@@ -66,21 +66,5 @@ internal data class EphemeralKey internal constructor(
                 type = type
             )
         }
-
-        @JvmSynthetic
-        internal fun create(
-            objectId: String,
-            created: Long,
-            expires: Long,
-            id: String,
-            isLiveMode: Boolean,
-            objectType: String,
-            secret: String,
-            type: String
-        ): EphemeralKey {
-            return EphemeralKey(
-                objectId, created, expires, id, isLiveMode, objectType, secret, type
-            )
-        }
     }
 }

stripe/src/main/java/com/stripe/android/EphemeralKeyManager.kt

@@ -85,7 +85,11 @@ internal class EphemeralKeyManager(
             arguments: Map<String, Any>?
         )
 
-        fun onKeyError(operationId: String, errorCode: Int, errorMessage: String)
+        fun onKeyError(
+            operationId: String,
+            errorCode: Int,
+            errorMessage: String
+        )
     }
 
     private class ClientKeyUpdateListener internal constructor(