Revert

.pipelines/v2/templates/job-build-project.yml

@@ -146,19 +146,16 @@ jobs:
     parameters:
       sdk: true
       version: '6.0'
-      platform: $(BuildPlatform)
 
   - template: steps-ensure-dotnet-version.yml
     parameters:
       sdk: true
       version: '8.0'
-      platform: $(BuildPlatform)
 
   - template: steps-ensure-dotnet-version.yml
     parameters:
       sdk: true
       version: '9.0'
-      platform: $(BuildPlatform)
 
   - ${{ if eq(parameters.runTests, true) }}:
     - task: VisualStudioTestPlatformInstaller@1

.pipelines/v2/templates/steps-ensure-dotnet-version.yml

@@ -23,7 +23,7 @@ steps:
       exit 1
     }
     $NEW_DOTNET_ROOT = "$(Agent.ToolsDirectory)\dotnet"
-    & ./dotnet-install.ps1 -Channel "${{parameters.version}}" -Architecture ${{parameters.platform}} -InstallDir $NEW_DOTNET_ROOT
+    & ./dotnet-install.ps1 -Channel "${{parameters.version}}" -InstallDir $NEW_DOTNET_ROOT
     Write-Host "##vso[task.setvariable variable=DOTNET_ROOT]${NEW_DOTNET_ROOT}"
     Write-Host "##vso[task.prependpath]${NEW_DOTNET_ROOT}"
     Remove-Item dotnet-install.ps1 -ErrorAction:Ignore