[llvm] [DeadArgElim] fix verifier failure when changing musttail's function signature (PR #127366)

[via llvm-commits]

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@@ -1149,8 +1123,6 @@ PreservedAnalyses DeadArgumentEliminationPass::run(Module &M,
   for (auto &F : M)
     surveyFunction(F);
 
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u4f3 wrote:

If you mean `propagateVirtMustcallLiveness`...Yes it is redundant after the change.

https://github.com/llvm/llvm-project/pull/127366