[clang] [analyzer] Clean up bug types in CallAndMessageChecker (PR #156073)

[Donát Nagy via cfe-commits]

================
@@ -728,23 +678,15 @@ void CallAndMessageChecker::HandleNilReceiver(CheckerContext &C,
   C.addTransition(state);
 }
 
-void ento::registerCallAndMessageModeling(CheckerManager &mgr) {
-  mgr.registerChecker<CallAndMessageChecker>();
-}
-
-bool ento::shouldRegisterCallAndMessageModeling(const CheckerManager &mgr) {
-  return true;
-}
-
-void ento::registerCallAndMessageChecker(CheckerManager &mgr) {
-  CallAndMessageChecker *checker = mgr.getChecker<CallAndMessageChecker>();
+void ento::registerCallAndMessageChecker(CheckerManager &Mgr) {
+  CallAndMessageChecker *Chk = Mgr.registerChecker<CallAndMessageChecker>();
 
-  checker->OriginalName = mgr.getCurrentCheckerName();
+  Chk->OriginalName = Mgr.getCurrentCheckerName();
----------------
NagyDonat wrote:

Oops, this is superfluous. Will delete soon.

https://github.com/llvm/llvm-project/pull/156073