[MemorySSA] Remove redundant walker assignment [NFC].

Subscribers: llvm-commits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356189 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemorySSA.cpp b/lib/Analysis/MemorySSA.cpp
index a2309d8..3ad9da9 100644
--- a/lib/Analysis/MemorySSA.cpp
+++ b/lib/Analysis/MemorySSA.cpp
@@ -1194,9 +1194,7 @@
 public:
   OptimizeUses(MemorySSA *MSSA, MemorySSAWalker *Walker, AliasAnalysis *AA,
                DominatorTree *DT)
-      : MSSA(MSSA), Walker(Walker), AA(AA), DT(DT) {
-    Walker = MSSA->getWalker();
-  }
+      : MSSA(MSSA), Walker(Walker), AA(AA), DT(DT) {}
 
   void optimizeUses();