[Parse] Always end translation unit

The check here was added back in
68090ee, but shouldn't actually be
needed (it was added back in purely because it was part of the original
change that joined the `-fincremental-extensions` with
`IncrementalProcessing`).

Author: bnbarham

clang/lib/Parse/Parser.cpp

@@ -719,8 +719,7 @@ bool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result,
 
     // Late template parsing can begin.
     Actions.SetLateTemplateParser(LateTemplateParserCallback, nullptr, this);
-    if (!PP.isIncrementalProcessingEnabled())
-      Actions.ActOnEndOfTranslationUnit();
+    Actions.ActOnEndOfTranslationUnit();
     //else don't tell Sema that we ended parsing: more input might come.
     return true;