Some minor cleanups

* remove an #ifdef USE_METADATA I accidently left in
* remove now unneeded llvm-version includes
* fix indentation in metadata.h
* prevent the "Found native target" message from interrupting ccmake

gen/optimizer.cpp

@@ -159,11 +159,9 @@ static void addPassesForOptLevel(PassManager& pm) {
         if (!disableLangSpecificPasses) {
             if (!disableSimplifyRuntimeCalls)
                 addPass(pm, createSimplifyDRuntimeCalls());
-            
-#ifdef USE_METADATA
+
             if (!disableGCToStack)
                 addPass(pm, createGarbageCollect2Stack());
-#endif
         }
         // Run some clean-up passes
         addPass(pm, createInstructionCombiningPass());