Drop redundant statements

Author: odersky

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

@@ -525,8 +525,8 @@ class CheckCaptures extends Recheck, SymTransformer:
             case rhs @ closure(_, _, _) =>
               // In a curried closure `x => y => e` don't leak capabilities retained by
               // the second closure `y => e` into the first one. This is an approximation
-              // of the CC rule which says that a closure contributes captures to its 
-              // environment only if a let-bound reference to the closure is used. 
+              // of the CC rule which says that a closure contributes captures to its
+              // environment only if a let-bound reference to the closure is used.
               capt.println(i"boxing $rhs")
               rhs.putAttachment(BoxedClosure, ())
             case _ =>
@@ -892,7 +892,6 @@ class CheckCaptures extends Recheck, SymTransformer:
       }
 
       if expected.isSingleton && actual.isSingleton then
-        println(i"shot $actual $expected")
         actual
       else
         var actualw = actual.widenDealias

compiler/src/dotty/tools/dotc/transform/Pickler.scala

@@ -173,7 +173,6 @@ class Pickler extends Phase {
         cls -> (unit, unpickler)
       }
     pickling.println("************* entered toplevel ***********")
-    val rootCtx = ctx
     for ((cls, (unit, unpickler)) <- unpicklers) do
       ctx.compilationUnit.needsCaptureChecking = unit.needsCaptureChecking
       val unpickled = unpickler.rootTrees