[llvm] [BOLT][NFC] Simplify getOrCreate/analyze/populate/emitJumpTable (PR #132108)

[Maksim Panchenko via llvm-commits]

https://github.com/maksfb commented:

There's a new change to `bolt/lib/Core/BinaryEmitter.cpp` in the last commit.

https://github.com/llvm/llvm-project/pull/132108