[llvm] [RISCV] Remove unnecessary vand.vi from vXi1 and nvXvi1 VECTOR_REVERSE codegen. (PR #109071)

[Luke Lau via llvm-commits]

lukel97 wrote:

I think there's an ISD::TRUNCATE in lowerINSERT_VECTOR_ELT's vxi1 handling that we can also do the same for

https://github.com/llvm/llvm-project/pull/109071