Remove extraneous return.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163119 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/AsmMatcherEmitter.cpp

@@ -1899,7 +1899,7 @@ static void emitConvertToMCInst(CodeGenTarget &Target, StringRef ClassName,
   }
 
   // Finish up the converter driver function.
-  CvtOS << "    }\n  }\n  return;\n}\n\n";
+  CvtOS << "    }\n  }\n}\n\n";
 
   // Finish up the operand number lookup function.
   OpOS << "    }\n  }\n  return MCOperandNum;\n}\n\n";