Don't increase symLevel for blocks

Author: odersky

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

@@ -887,9 +887,6 @@ class CheckCaptures extends Recheck, SymTransformer:
             report.error(em"$refArg is not a tracked capability", refArg.srcPos)
       case _ =>
 
-    override def recheckBlock(tree: Block, pt: Type)(using Context): Type =
-      ccState.inNestedLevel(super.recheckBlock(tree, pt))
-
     /** Recheck Closure node: add the captured vars of the anonymoys function
      *  to the result type. See also `recheckClosureBlock` which rechecks the
      *  block containing the anonymous function and the Closure node.

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

@@ -586,9 +586,6 @@ class Setup extends PreRecheck, SymTransformer, SetupAPI:
           traverse(elems)
           tpt.setNuType(box(transformInferredType(tpt.tpe)))
 
-        case tree: Block =>
-          ccState.inNestedLevel(traverseChildren(tree))
-
         case _ =>
           traverseChildren(tree)
       postProcess(tree)