Remove a stale forward declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156770 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Transforms/Utils/PromoteMemToReg.h b/include/llvm/Transforms/Utils/PromoteMemToReg.h
index 98d51a29ad714ecf382af5e79382161ad346deae..0bb6ec69bbd50992f8c196e8ea62d09b519988b8 100644 (file)
--- a/include/llvm/Transforms/Utils/PromoteMemToReg.h
+++ b/include/llvm/Transforms/Utils/PromoteMemToReg.h
@@ -21,7 +21,6 @@ namespace llvm {
 
 class AllocaInst;
 class DominatorTree;
-class DominanceFrontier;
 class AliasSetTracker;
 
 /// isAllocaPromotable - Return true if this alloca is legal for promotion.