Rollup merge of #146905 - durin42:llvm-22-bitstream-remarks, r=nikic

llvm: update remarks support on LLVM 22

LLVM change dfbd76bda01e removed separate remark support entirely, but
it turns out we can just drop the parameter and everything appears to
work fine.

Fixes rust-lang/rust#146912 as far as I can tell (the test passes.)

Author: Zalathar