Remove unnecessary metadata duplication in Script*.

Change-Id: If29710fc1a2d0a80413b3014bb6933b0f7b40acb
diff --git a/lib/ExecutionEngine/Script.h b/lib/ExecutionEngine/Script.h
index 0560f55..e95cf8a 100644
--- a/lib/ExecutionEngine/Script.h
+++ b/lib/ExecutionEngine/Script.h
@@ -98,15 +98,11 @@
     BCCSymbolLookupFn mpExtSymbolLookupFn;
     void *mpExtSymbolLookupFnContext;
 
-    uint32_t mCompilerVersion;
-    uint32_t mOptimizationLevel;
-
   public:
     Script() : mErrorCode(BCC_NO_ERROR), mStatus(ScriptStatus::Unknown),
                mObjectType(ScriptObject::Unknown),
                mIsContextSlotNotAvail(false),
-               mpExtSymbolLookupFn(NULL), mpExtSymbolLookupFnContext(NULL),
-               mCompilerVersion(0), mOptimizationLevel(3) {
+               mpExtSymbolLookupFn(NULL), mpExtSymbolLookupFnContext(NULL) {
       Compiler::GlobalInitialization();
 
       mSourceList[0] = NULL;
@@ -169,14 +165,6 @@
 
     void *lookup(const char *name);
 
-    uint32_t getCompilerVersion() const {
-      return mCompilerVersion;
-    }
-
-    uint32_t getOptimizationLevel() const {
-      return mOptimizationLevel;
-    }
-
     size_t getExportVarCount() const;
 
     size_t getExportFuncCount() const;