Silence gcc warnings.

llvm-svn: 146847
diff --git a/clang/lib/Parse/ParseExprCXX.cpp b/clang/lib/Parse/ParseExprCXX.cpp
index 2e0b6a5..fff68b5 100644
--- a/clang/lib/Parse/ParseExprCXX.cpp
+++ b/clang/lib/Parse/ParseExprCXX.cpp
@@ -1022,7 +1022,7 @@
 
   if (Tok.is(tok::kw_decltype) && !FirstTypeName.isValid() && SS.isEmpty()) {
     DeclSpec DS(AttrFactory);
-    SourceLocation EndLoc = ParseDecltypeSpecifier(DS);
+    ParseDecltypeSpecifier(DS);
     if (DS.getTypeSpecType() == TST_error)
       return ExprError();
     return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, OpLoc,