Update azure-pipelines-samples.yml for Azure Pipelines

Author: nums11

azure-pipelines-samples.yml

@@ -139,10 +139,9 @@ jobs:
       inputs:
         solution: 'Testing/**/SamplesTest.sln'
         vsVersion: "16.0"
-        msbuildArgs: '-v:diag /p:OutDir=$(System.DefaultWorkingDirectory)\bin\$(BuildPlatform)\$(BuildConfiguration)\SamplesTest\ /p:WindowsTargetPlatformVersion=$(WindowsTargetPlatformVersion)'
+        msbuildArgs: '-v:diag /p:OutDir=$(System.DefaultWorkingDirectory)\bin\$(BuildPlatform)\$(BuildConfiguration)\SamplesTest\ /p:WindowsTargetPlatformVersion=$(WindowsTargetPlatformVersion) /t:Restore,Clean,Build'
         platform: '$(BuildPlatform)'
         configuration: '$(BuildConfiguration)'
-        clean: true
         msbuildArchitecture: x64
         createLogFile: true
       condition: succeededOrFailed()