Drop -verify-machineinstrs

Author: Pierre-vh

llvm/test/CodeGen/AMDGPU/GlobalISel/combine-trunc-sext.mir

@@ -1,6 +1,6 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
-# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=amdgpu-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck -check-prefixes=GCN,PRELEGAL %s
-# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=amdgpu-regbank-combiner -verify-machineinstrs %s -o - | FileCheck -check-prefixes=GCN,RBCOMB %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=amdgpu-prelegalizer-combiner %s -o - | FileCheck -check-prefixes=GCN,PRELEGAL %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=amdgpu-regbank-combiner %s -o - | FileCheck -check-prefixes=GCN,RBCOMB %s
 
 ---
 name: trunc_sext_i32_i16