[llvm] delete MF.verify from PPCMIPeephole pass (PR #108075)

[zhijian lin via llvm-commits]

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@@ -177,11 +177,6 @@ struct PPCMIPeephole : public MachineFunctionPass {
     if (skipFunction(MF.getFunction()))
       return false;
     bool Changed = simplifyCode();
-#ifndef NDEBUG
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diggerlin wrote:

this `MF.verify`  cause Compile time regression with 502.gcc at BASE and PEAK from 62 seconds to 255 seconds

https://github.com/llvm/llvm-project/pull/108075