AnimationExtension isn't used.

Author: David Britch

src/Mobile/eShopOnContainers/eShopOnContainers.Core/Extensions/AnimationExtension.cs

@@ -60,7 +60,6 @@
     <Compile Include="Converters\ToUpperConverter.cs" />
     <Compile Include="Effects\LineColorEffect.cs" />
     <Compile Include="Exceptions\ServiceAuthenticationException.cs" />
-    <Compile Include="Extensions\AnimationExtension.cs" />
     <Compile Include="Extensions\ObservableExtension.cs" />
     <Compile Include="GlobalSettings.cs" />
     <Compile Include="Helpers\EasingHelper.cs" />