Switch all uses of LLVM_OVERRIDE to just use 'override' directly.

llvm-svn: 202621
diff --git a/llvm/lib/Support/DAGDeltaAlgorithm.cpp b/llvm/lib/Support/DAGDeltaAlgorithm.cpp
index 34e82cf4..7b81a11 100644
--- a/llvm/lib/Support/DAGDeltaAlgorithm.cpp
+++ b/llvm/lib/Support/DAGDeltaAlgorithm.cpp
@@ -163,11 +163,11 @@
 protected:
   /// UpdatedSearchState - Callback used when the search state changes.
   virtual void UpdatedSearchState(const changeset_ty &Changes,
-                                  const changesetlist_ty &Sets) LLVM_OVERRIDE {
+                                  const changesetlist_ty &Sets) override {
     DDAI.UpdatedSearchState(Changes, Sets, Required);
   }
 
-  virtual bool ExecuteOneTest(const changeset_ty &S) LLVM_OVERRIDE {
+  virtual bool ExecuteOneTest(const changeset_ty &S) override {
     return DDAI.GetTestResult(S, Required);
   }