Kill dead code

runtime/vm/debugger.cc

Index: runtime/vm/debugger.cc
diff --git a/runtime/vm/debugger.cc b/runtime/vm/debugger.cc
index d4c276823e6cb7177a965d00cd0f8d503d0cb9e4..f9517a3f95ee3f95acfeded4f9c512acacdbc1fc 100644
--- a/runtime/vm/debugger.cc
+++ b/runtime/vm/debugger.cc
@@ -955,7 +955,6 @@ const Context& ActivationFrame::GetSavedCurrentContext() {
     }
   }
   return ctx_;
-  return Context::ZoneHandle(Context::null());
 }