remove plugin.settings to avoid warning

src/Mobile/eShopOnContainers/eShopOnContainers.TestRunner.Droid/eShopOnContainers.TestRunner.Droid.csproj

@@ -159,12 +159,6 @@
     <Reference Include="IdentityModel">
       <HintPath>..\..\..\..\packages\IdentityModel.3.0.0\lib\netstandard2.0\IdentityModel.dll</HintPath>
     </Reference>
-    <Reference Include="Plugin.Settings.Abstractions">
-      <HintPath>..\..\..\..\packages\Xam.Plugins.Settings.3.1.1\lib\MonoAndroid10\Plugin.Settings.Abstractions.dll</HintPath>
-    </Reference>
-    <Reference Include="Plugin.Settings">
-      <HintPath>..\..\..\..\packages\Xam.Plugins.Settings.3.1.1\lib\MonoAndroid10\Plugin.Settings.dll</HintPath>
-    </Reference>
     <Reference Include="PInvoke.Windows.Core">
       <HintPath>..\..\..\..\packages\PInvoke.Windows.Core.0.3.2\lib\portable-net45+win+wpa81+MonoAndroid10+xamarinios10+MonoTouch10\PInvoke.Windows.Core.dll</HintPath>
     </Reference>