[analyzer] Cleanup in UndefBranchChecker:
  - Remove unused FindUndefExpr::ProgramStateManager.
  - The Condition parameter of the callback is the terminator of the block, no need to retrieve it again.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141027 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed