Remove unused member variable.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220264 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/LiveVariables.cpp

@@ -82,7 +82,6 @@ namespace {
 class LiveVariablesImpl {
 public:  
   AnalysisDeclContext &analysisContext;
-  std::vector<LiveVariables::LivenessValues> cfgBlockValues;
   llvm::ImmutableSet<const Stmt *>::Factory SSetFact;
   llvm::ImmutableSet<const VarDecl *>::Factory DSetFact;
   llvm::DenseMap<const CFGBlock *, LiveVariables::LivenessValues> blocksEndToLiveness;