[mlir:Function][NFC] Use BitVector instead of ArrayRef for indices when removing...

[mlir:Function][NFC] Use BitVector instead of ArrayRef for indices when removing arguments/results

We already convert to BitVector internally, and other APIs (namely Operation::eraseOperands)
already use BitVector as well. Switching over provides a common format between
API and also reduces the amount of format conversions necessary.

Fixes #53325

Differential Revision: https://reviews.llvm.org/D118083