[Windows] Remove LLVM standalone installation

LLVM is already included in the Visual Studio installation. This
duplication creates conflicts between versions. The current MSVC C++
standard library requires at least Clang 17, while the standalone LLVM
is 16.

There is no reason to include two different LLVM versions. Use the one
from the Visual Studio installation. Should anyone need standalone LLVM,
they can install it with a single command: `choco install llvm`.

Fixes: actions#10001

images/windows/Windows2019-Readme.md

@@ -16,7 +16,6 @@
 - Go 1.21.10
 - Julia 1.10.3
 - Kotlin 2.0.0
-- LLVM 16.0.6
 - Node 18.20.3
 - Perl 5.32.1
 - PHP 8.3.7

images/windows/Windows2022-Readme.md

@@ -17,7 +17,6 @@
 - Go 1.21.10
 - Julia 1.10.3
 - Kotlin 1.9.24
-- LLVM 16.0.6
 - Node 18.20.2
 - Perl 5.32.1
 - PHP 8.3.7

images/windows/templates/windows-2019.pkr.hcl

@@ -389,8 +389,7 @@ build {
       "${path.root}/../scripts/build/Configure-DynamicPort.ps1",
       "${path.root}/../scripts/build/Configure-GDIProcessHandleQuota.ps1",
       "${path.root}/../scripts/build/Configure-Shell.ps1",
-      "${path.root}/../scripts/build/Configure-DeveloperMode.ps1",
-      "${path.root}/../scripts/build/Install-LLVM.ps1"
+      "${path.root}/../scripts/build/Configure-DeveloperMode.ps1"
     ]
   }
 

images/windows/templates/windows-2022.pkr.hcl

@@ -390,8 +390,7 @@ build {
       "${path.root}/../scripts/build/Configure-DynamicPort.ps1",
       "${path.root}/../scripts/build/Configure-GDIProcessHandleQuota.ps1",
       "${path.root}/../scripts/build/Configure-Shell.ps1",
-      "${path.root}/../scripts/build/Configure-DeveloperMode.ps1",
-      "${path.root}/../scripts/build/Install-LLVM.ps1"
+      "${path.root}/../scripts/build/Configure-DeveloperMode.ps1"
     ]
   }