Revert "Strip CC annotations in TypeMap when CC is not enabled"

This reverts commit 52db678.

Author: odersky

compiler/src/dotty/tools/dotc/core/Types.scala

@@ -30,7 +30,6 @@ import Hashable.*
 import Uniques.*
 import collection.mutable
 import config.Config
-import config.Feature
 import config.Feature.sourceVersion
 import config.SourceVersion
 import annotation.{tailrec, constructorOnly}
@@ -6484,13 +6483,10 @@ object Types extends TypeUtils {
           mapCapturingType(tp, parent, refs, variance)
 
         case tp @ AnnotatedType(underlying, annot) =>
-          if annot.symbol.isRetainsLike && !Feature.ccEnabledSomewhere then
-            this(underlying) // strip retains like annotations unless capture checking is enabled
-          else
-            val underlying1 = this(underlying)
-            val annot1 = annot.mapWith(this)
-            if annot1 eq EmptyAnnotation then underlying1
-            else derivedAnnotatedType(tp, underlying1, annot1)
+          val underlying1 = this(underlying)
+          val annot1 = annot.mapWith(this)
+          if annot1 eq EmptyAnnotation then underlying1
+          else derivedAnnotatedType(tp, underlying1, annot1)
 
         case _: ThisType
           | _: BoundType