Remove dead code, there's no need for an override that just duplicates

the default behavior.

llvm-svn: 245251

clang/lib/Basic/Targets.cpp

@@ -6816,8 +6816,6 @@ public:
     this->RegParmMax = 0; // Disallow regparm
   }
 
-  void getDefaultFeatures(llvm::StringMap<bool> &Features) const override {
-  }
   void getArchDefines(const LangOptions &Opts, MacroBuilder &Builder) const {
     Builder.defineMacro("__le32__");
     Builder.defineMacro("__pnacl__");