Drop Get-ApiViewCommandLine.ps1 (a script that was used for the old ApiView process) (#5074)

* Drop Get-ApiViewCommandLine.ps1

---------

Co-authored-by: Anton Kolesnyk <antkmsft@users.noreply.github.com>

eng/scripts/Get-ApiViewCommandLine.ps1

@@ -1,58 +0,0 @@
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# SPDX-License-Identifier: MIT
-
-# Usage: Get-ApiViewCommandLine.ps1 .\azure-sdk-for-cpp azure-identity
-# Or: ..\Get-ApiViewCommandLine.ps1 . azure-core
-# Or: Get-ApiViewCommandLine.ps1 ..\.. azure-security-attestation
-# Or: c:\src\azure-sdk-for-cpp\eng\scripts\Get-ApiViewCommandLine.ps1 c:\src\azure-sdk-for-cpp azure-identity
-
-param([String]$RepoPath, [String]$LibName)
-
-[String]$SdkRoot = Resolve-Path ($RepoPath + "\sdk")
-
-[String[]]$AllIncDirs = Get-ChildItem -Directory -Filter "inc" -Recurse $SdkRoot | Select-Object -ExpandProperty FullName
-
-[String[]]$AllIncDirsWithoutInc = $AllIncDirs | Select-Object @{ Label="Substr"; Expression = { $_.Substring(0, $_.Length - "inc".Length) } } | Select-Object -ExpandProperty Substr
-
-[String[]]$AllLibIncDirs = @()
-for($i = 0; $i -lt $AllIncDirsWithoutInc.Length; $i++) {
-    $isLibDir = $true
-    $libDir = $AllIncDirsWithoutInc[$i]
-    for($j = 0; $j -lt $AllIncDirsWithoutInc.Length; $j++) {
-        if ($i -eq $j) {
-            continue
-        }
-
-        $StartsWith = $AllIncDirsWithoutInc[$j] + "*"
-        if ($libDir -Like $StartsWith) {
-            $isLibDir = $false
-            break
-        }
-    }
-
-    if ($isLibDir){
-        $AllLibIncDirs += $libDir + "inc"
-    }
-}
-
-[String]$LibIncDir = $AllLibIncDirs | Where-Object {$_ -Match ("\\" + $LibName + "\\inc") } | Select-Object -First 1
-
-[String[]]$LibHeaders = Get-ChildItem -File -Recurse $LibIncDir | Select-Object -ExpandProperty FullName
-
-$CmdLine = "clang++"
-foreach ($header in $LibHeaders) {
-    $CmdLine += " " + $header
-}
-
-$CmdLine += " -Xclang -ast-dump"
-
-foreach ($incDir in $AllLibIncDirs) {
-    $CmdLine += " -I " + $incDir
-}
-
-# Define an _azure_APIVIEW macro so that the public headers that depend on 3rd party headers apply a work around
-# for declaring 3rd party dependencies in a minimalistic way that is sufficient for the ApiView generation.
-# Otherwise, ApiView would've been including 3rd party types for review, which is not what we want.
-$CmdLine += " -D_azure_APIVIEW"
-
-$CmdLine