Remove obsolete experimental coroutines support

in compiler.

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/lazy/descriptors/LazyJavaClassMemberScope.kt

@@ -17,7 +17,7 @@
 package org.jetbrains.kotlin.load.java.lazy.descriptors
 
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
-import org.jetbrains.kotlin.builtins.isContinuation
+import org.jetbrains.kotlin.builtins.StandardNames.CONTINUATION_INTERFACE_FQ_NAME
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.annotations.Annotations
 import org.jetbrains.kotlin.descriptors.impl.ClassConstructorDescriptorImpl
@@ -228,10 +228,8 @@ class LazyJavaClassMemberScope(
 
     private fun SimpleFunctionDescriptor.createSuspendView(): SimpleFunctionDescriptor? {
         val continuationParameter = valueParameters.lastOrNull()?.takeIf {
-            isContinuation(
-                it.type.constructor.declarationDescriptor?.fqNameUnsafe?.takeIf(FqNameUnsafe::isSafe)?.toSafe(),
-                c.components.settings.isReleaseCoroutines
-            )
+            it.type.constructor.declarationDescriptor?.fqNameUnsafe?.takeIf(FqNameUnsafe::isSafe)
+                ?.toSafe() == CONTINUATION_INTERFACE_FQ_NAME
         } ?: return null
 
         val functionDescriptor = newCopyBuilder()
@@ -699,7 +697,11 @@ class LazyJavaClassMemberScope(
             classDescriptor.declaredTypeParameters +
                     constructor.typeParameters.map { p -> c.typeParameterResolver.resolveTypeParameter(p)!! }
 
-        constructorDescriptor.initialize(valueParameters.descriptors, constructor.visibility.toDescriptorVisibility(), constructorTypeParameters)
+        constructorDescriptor.initialize(
+            valueParameters.descriptors,
+            constructor.visibility.toDescriptorVisibility(),
+            constructorTypeParameters
+        )
         constructorDescriptor.setHasStableParameterNames(false)
         constructorDescriptor.setHasSynthesizedParameterNames(valueParameters.hasSynthesizedNames)
 

core/descriptors.jvm/src/org/jetbrains/kotlin/load/kotlin/descriptorBasedTypeSignatureMapping.kt

@@ -44,7 +44,7 @@ fun <T : Any> mapType(
 
     if (kotlinType.isSuspendFunctionType) {
         return mapType(
-            transformSuspendFunctionToRuntimeFunctionType(kotlinType, typeMappingConfiguration.releaseCoroutines()),
+            transformSuspendFunctionToRuntimeFunctionType(kotlinType),
             factory, mode, typeMappingConfiguration, descriptorTypeWriter, writeGenericType
         )
     }