[ORC] Remove some unreachable code.

Fixes http://llvm.org/PR41662.

llvm-svn: 361199
diff --git a/llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp b/llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp
index deabb04..7151881 100644
--- a/llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp
@@ -139,13 +139,10 @@
         CtorDtor();
       }
     }
+    CtorDtorsByPriority.clear();
     return Error::success();
   } else
     return CtorDtorMap.takeError();
-
-  CtorDtorsByPriority.clear();
-
-  return Error::success();
 }
 
 void LocalCXXRuntimeOverridesBase::runDestructors() {