tblgen: Remove last traces of old TableGenMain API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165168 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/TableGen/Main.cpp b/lib/TableGen/Main.cpp
index 83bc66f..2c37aa7 100644
--- a/lib/TableGen/Main.cpp
+++ b/lib/TableGen/Main.cpp
@@ -24,7 +24,6 @@
 #include "llvm/TableGen/Error.h"
 #include "llvm/TableGen/Main.h"
 #include "llvm/TableGen/Record.h"
-#include "llvm/TableGen/TableGenAction.h"
 #include <algorithm>
 #include <cstdio>
 using namespace llvm;
@@ -48,27 +47,9 @@
               cl::value_desc("directory"), cl::Prefix);
 }
 
-namespace {
-// XXX: this is a crutch for transitioning to the new TableGenMain API
-// (with a TableGenMainFn* instead of a pointless class).
-class StubTransitionalTableGenAction : public TableGenAction {
-  TableGenMainFn *MainFn;
-public:
-  StubTransitionalTableGenAction(TableGenMainFn *M) : MainFn(M) {}
-  bool operator()(raw_ostream &OS, RecordKeeper &Records) {
-    return MainFn(OS, Records);
-  }
-};
-}
-
 namespace llvm {
 
 int TableGenMain(char *argv0, TableGenMainFn *MainFn) {
-  StubTransitionalTableGenAction Action(MainFn);
-  return TableGenMain(argv0, Action);
-}
-
-int TableGenMain(char *argv0, TableGenAction &Action) {
   RecordKeeper Records;
 
   try {
@@ -123,7 +104,7 @@
       DepOut.keep();
     }
 
-    if (Action(Out.os(), Records))
+    if (MainFn(Out.os(), Records))
       return 1;
 
     // Declare success.