Remove unnecessary references.

Author: wilcobmsft

src/ResourceManager/Subscription/Commands.Subscription.Test/Commands.Subscription.Test.csproj

@@ -171,10 +171,6 @@
       <Project>{5ee72c53-1720-4309-b54b-5fb79703195f}</Project>
       <Name>Commands.Common</Name>
     </ProjectReference>
-    <ProjectReference Include="..\..\Common\Commands.Common.Authentication.ResourceManager\Commands.Common.Authentication.ResourceManager.csproj">
-      <Project>{69c2eb6b-cd63-480a-89a0-c489706e9299}</Project>
-      <Name>Commands.Common.Authentication.ResourceManager</Name>
-    </ProjectReference>
     <ProjectReference Include="..\..\Common\Commands.ResourceManager.Common\Commands.ResourceManager.Common.csproj">
       <Project>{3819d8a7-c62c-4c47-8ddd-0332d9ce1252}</Project>
       <Name>Commands.ResourceManager.Common</Name>

src/ResourceManager/Subscription/Commands.Subscription/Commands.Subscription.csproj

@@ -48,10 +48,6 @@
     </Reference>
     <Reference Include="System.Management.Automation, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
     <Reference Include="System.Web" />
-    <ProjectReference Include="..\..\Common\Commands.Common.Authentication.ResourceManager\Commands.Common.Authentication.ResourceManager.csproj">
-      <Project>{69c2eb6b-cd63-480a-89a0-c489706e9299}</Project>
-      <Name>Commands.Common.Authentication.ResourceManager</Name>
-    </ProjectReference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Cmdlets\NewAzureRmSubscriptionDefinition.cs" />