Update Helix.props

Author: HaoK

eng/targets/Helix.props

@@ -43,10 +43,11 @@
 
   <ItemGroup Condition="'$(TestDependsOnNode)' == 'true' AND '$(IsWindowsHelixQueue)' == 'true'">
     <HelixPreCommand Include="call RunPowershell.cmd InstallJdk.ps1 $(JdkVersion) || exit /b 1" />
-    <HelixPreCommand Include="set PATH=%PATH%;.\jdk\bin" />
-    <HelixPreCommand Include="java" />
     <HelixPreCommand Include="call RunPowershell.cmd InstallNode.ps1 $(NodeVersion) %25HELIX_CORRELATION_PAYLOAD%25\node\bin || exit /b 1" />
-    
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TestDependsOnYarn)' == 'true' AND '$(IsWindowsHelixQueue)' == 'true'">
+    <HelixPreCommand Include="call InstallYarn.cmd || exit /b 1" />
+  </ItemGroup>
+  
 </Project>