Drop previous uses of newScheme

Author: odersky

compiler/src/dotty/tools/dotc/cc/Capability.scala

@@ -466,7 +466,7 @@ object Capabilities:
      */
     final def isLocalMutable(using Context): Boolean = this match
       case tp @ TermRef(NoPrefix, _) =>
-        ccConfig.newScheme && ccConfig.strictMutability
+        ccConfig.strictMutability
         && tp.symbol.isMutableVar
         && !tp.symbol.hasAnnotation(defn.UntrackedCapturesAnnot)
       case _ => false

compiler/src/dotty/tools/dotc/cc/CaptureOps.scala

@@ -675,7 +675,7 @@ extension (sym: Symbol)
     sym == defn.ArrayClass && ccConfig.strictMutability
 
   def isDisallowedInCapset(using Context): Boolean =
-    sym.isOneOf(if ccConfig.newScheme && ccConfig.strictMutability then Method else UnstableValueFlags)
+    sym.isOneOf(if ccConfig.strictMutability then Method else UnstableValueFlags)
 
   def varMirror(using Context): Symbol =
     ccState.varMirrors.getOrElseUpdate(sym,