Remove the unused DestroyAttrs, noticed by Michael Han.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155877 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/Attr.h b/include/clang/AST/Attr.h
index ef1aa25..84ee5a7 100644
--- a/include/clang/AST/Attr.h
+++ b/include/clang/AST/Attr.h
@@ -147,10 +147,6 @@
 typedef SmallVector<Attr*, 2> AttrVec;
 typedef SmallVector<const Attr*, 2> ConstAttrVec;
 
-/// DestroyAttrs - Destroy the contents of an AttrVec.
-inline void DestroyAttrs (AttrVec& V, ASTContext &C) {
-}
-
 /// specific_attr_iterator - Iterates over a subrange of an AttrVec, only
 /// providing attributes that are of a specifc type.
 template <typename SpecificAttr>