fix ui tests pipeline

.pipelines/v2/templates/job-build-ui-tests.yml

@@ -68,15 +68,6 @@ jobs:
 
   - template: .\steps-restore-nuget.yml
 
-  - task: NuGetCommand@2
-    displayName: Restore solution-level NuGet packages
-    inputs:
-      command: restore
-      feedsToUse: config
-      configPath: nuget.config
-      restoreSolution: PowerToys.slnx
-      restoreDirectory: '$(Build.SourcesDirectory)\packages'
-
   # Build all UI test projects if no specific modules are specified
   - ${{ if eq(length(parameters.uiTestModules), 0) }}:
     - task: VSBuild@1