[TableGen] Error.h - remove quotes to silence clang-tidy llvm-namespace-comment warning

Author: RKSimon

llvm/include/llvm/TableGen/Error.h

@@ -47,6 +47,6 @@ void CheckAssert(SMLoc Loc, Init *Condition, Init *Message);
 extern SourceMgr SrcMgr;
 extern unsigned ErrorsPrinted;
 
-} // end namespace "llvm"
+} // end namespace llvm
 
 #endif