[AArch64] Remove -debug flag from mlicm-csr-mask.mir

Author: Pierre-vh

llvm/test/CodeGen/AArch64/mlicm-csr-mask.mir

@@ -1,5 +1,5 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
-# RUN: llc -mtriple=aarch64-unknown-linux-gnu -run-pass=greedy,machinelicm -verify-machineinstrs -debug -o - %s | FileCheck %s
+# RUN: llc -mtriple=aarch64-unknown-linux-gnu -run-pass=greedy,machinelicm -verify-machineinstrs -o - %s | FileCheck %s
 
 # FIXME: Running RA is needed otherwise it runs pre-RA LICM.
 ---