[RISCV] Remove unneeded unmasked patterns for vcpop_v and riscv_vfirst_vl.#127435

topperc merged 1 commit intollvm:mainllvm/llvm-project:mainfrom

topperc:pr/vcpop-vfirst-masktopperc/llvm-project:pr/vcpop-vfirst-maskCopy head branch name to clipboard