Revert r171140. We don't actually need to support #NAME. Because NAME by itself is interpreted just fine.

llvm-svn: 171695
diff --git a/llvm/lib/TableGen/TGParser.cpp b/llvm/lib/TableGen/TGParser.cpp
index e5875ad..17f0abc 100644
--- a/llvm/lib/TableGen/TGParser.cpp
+++ b/llvm/lib/TableGen/TGParser.cpp
@@ -2406,11 +2406,7 @@
 
   Init *DefmPrefix = 0;
 
-  Lex.Lex(); // eat the defm.
-
-  // Note that tgtok::paste is here to allow starting with #NAME.
-  if (Lex.getCode() == tgtok::Id ||
-      Lex.getCode() == tgtok::paste) {
+  if (Lex.Lex() == tgtok::Id) {  // eat the defm.
     DefmPrefix = ParseObjectName(CurMultiClass);
   }