Fix issue (#108 )

Del StreamerLoading.cs

Author: yanjinhuagood

src/WPFDevelopers.Shared/WPFDevelopers.Shared.projitems

@@ -83,7 +83,6 @@
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Loading\NormalLoading.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Loadings\RingLoading.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Loadings\RollLoading.cs" />
-    <Compile Include="$(MSBuildThisFileDirectory)Controls\Loadings\StreamerLoading.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Loadings\WaitLoading.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Loading\Loading.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Loading\DefaultLoading.cs" />