Remove getOrCreateSymbolData. There is no MCSymbolData anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238952 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/MC/MCObjectStreamer.h

@@ -56,9 +56,6 @@ public:
   /// Object streamers require the integrated assembler.
   bool isIntegratedAssemblerRequired() const override { return true; }
 
-  void getOrCreateSymbolData(const MCSymbol *Symbol) {
-    getAssembler().registerSymbol(*Symbol);
-  }
   void EmitFrames(MCAsmBackend *MAB);
   void EmitCFISections(bool EH, bool Debug) override;