Remove a unused member variable. Instead query the option from AnalysisManager.

llvm-svn: 80226
diff --git a/clang/lib/Analysis/GRExprEngine.cpp b/clang/lib/Analysis/GRExprEngine.cpp
index 41caeaf..668e3a9 100644
--- a/clang/lib/Analysis/GRExprEngine.cpp
+++ b/clang/lib/Analysis/GRExprEngine.cpp
@@ -245,9 +245,9 @@
     
   // Create the cleaned state.  
   SymbolReaper SymReaper(*AMgr.getLiveVariables(), SymMgr);  
-  CleanedState = PurgeDead ? StateMgr.RemoveDeadBindings(EntryNode->getState(), 
-                                                         CurrentStmt, SymReaper)
-                           : EntryNode->getState();
+  CleanedState = AMgr.shouldPurgeDead()
+    ? StateMgr.RemoveDeadBindings(EntryNode->getState(), CurrentStmt, SymReaper)
+    : EntryNode->getState();
 
   // Process any special transfer function for dead symbols.
   ExplodedNodeSet Tmp;