Remove old dead code from FullCLR

[iSazonov]

PR Summary

Remove some #if !CORECLR.

• remove old code from FullCLR time
• uncomment logging

PR Context

PR Checklist

• PR has a meaningful title
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• Summarized changes
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
• This PR is ready to merge and is not Work in Progress.
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• Breaking changes
  • None
  • OR
  • Experimental feature(s) needed
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• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed
    • Issue filed:
• Testing - New and feature
  • N/A or can only be tested interactively
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  • Make sure you've added a new test if existing tests do not effectively test the code changed
• Tooling
  • I have considered the user experience from a tooling perspective and don't believe tooling will be impacted.
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  • I have considered the user experience from a tooling perspective and enumerated concerns in the summary. This may include:
    • Impact on PowerShell Editor Services which is used in the PowerShell extension for VSCode (which runs in a different PS Host).
    • Impact on Completions (both in the console and in editors) - one of PowerShell's most powerful features.
    • Impact on PSScriptAnalyzer (which provides linting & formatting in the editor extensions).
    • Impact on EditorSyntax (which provides syntax highlighting with in VSCode, GitHub, and many other editors).

[PoshChan]

@iSazonov, your last commit had 1 failures in PowerShell-CI-macos
Test-Connection.TraceRoute.TraceRoute works

Expected exactly '10.79.9.114', but got 127.0.0.1.
at <ScriptBlock>, /Users/runner/runners/2.164.8/work/1/s/test/powershell/Modules/Microsoft.PowerShell.Management/Test-Connection.Tests.ps1: line 257
257:             $result[0].TargetAddress | Should -BeExactly $realAddress

[iSazonov]

@PoshChan please retry macos

[PoshChan]

@iSazonov, successfully started retry of PowerShell-CI-macOS

[iSazonov]

Reopen to restart CIs.

[ghost]

🎉v7.1.0-preview.1 has been released which incorporates this pull request.:tada:

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