Get rid of unused variable warning.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47174 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaDecl.cpp b/Sema/SemaDecl.cpp
index 81d4c9e..137a188 100644
--- a/Sema/SemaDecl.cpp
+++ b/Sema/SemaDecl.cpp
@@ -897,7 +897,7 @@
     // C99 6.7.5.2p2: If an identifier is declared to be an object with 
     // static storage duration, it shall not have a variable length array.
     if ((FVD || BVD) && IDecl->getStorageClass() == VarDecl::Static) {
-      if (const VariableArrayType *VLA = T->getAsVariableArrayType()) {
+      if (T->isVariableArrayType()) {
         Diag(IDecl->getLocation(), diag::err_typecheck_illegal_vla);
         IDecl->setInvalidDecl();
       }