[JitDiff X64] [EgorBo] Remove redundant sign/zero extension for SIMD broadcasts

[MihuBot]

Job completed in 2 minutes 13 seconds.
dotnet/runtime#108824

[MihuBot]

@xtqqczze

[xtqqczze]

[00:02:13] [Setup runtime] + eng/install-native-dependencies.sh linux
[00:02:13] [Setup runtime] setup-runtime.sh: line 24: eng/install-native-dependencies.sh: No such file or directory
ERROR: System.Exception: bash -x setup-runtime.sh failed with exit code 127
   at Runner.JobBase.RunProcessAsync(String fileName, String arguments, List`1 output, String logPrefix, String workDir, Boolean checkExitCode, Func`2 processLogs, Boolean suppressOutputLogs, Boolean suppressStartingLog, ProcessPriorityClass priority, CancellationToken cancellationToken) in /home/runtime-utils/Runner/JobBase.cs:line 390
   at Runner.Helpers.RuntimeHelpers.CloneRuntimeAsync(JobBase job) in /home/runtime-utils/Runner/Helpers/RuntimeHelpers.cs:line 48
   at Runner.Jobs.JitDiffJob.CloneRuntimeAndSetupToolsAsync(JobBase job) in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 84
   at Runner.Jobs.JitDiffJob.RunJobCoreAsync() in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 21
   at Runner.JobBase.RunJobAsync() in /home/runtime-utils/Runner/JobBase.cs:line 120

cc: @MihaZupan

[MihaZupan]

#767