[clang] [NFC][analyzer] Remove most NodeBuilders in ObjC logic (PR #202709)

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https://github.com/gamesh411 approved this pull request.

I have checked whether the `HasTag` assertion could be important, and concluded that the worklist algorithm for visiting nodes would have deduplicated nodes that could trigger it. I also feel that refactoring into a method was the pragmatic choice to eliminate half of the parameters. LGTM.

https://github.com/llvm/llvm-project/pull/202709