Removed files added during rebase.

Author: grokys

src/GitHub.Extensions/GitHub.Extensions.csproj

@@ -23,25 +23,7 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
   </ItemGroup>
-  <ItemGroup>
-    <Compile Include="IReadOnlyObservableCollection.cs" />
-    <Compile Include="LambdaComparer.cs" />
-    <Compile Include="ObservableCollectionEx.cs" />
-    <Compile Include="ObservableCollectionExtensions.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="..\common\SolutionInfo.cs">
-      <Link>Properties\SolutionInfo.cs</Link>
-    </Compile>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="EnumerableExtensions.cs" />
-    <Compile Include="ExceptionExtensions.cs" />
-    <Compile Include="Guard.cs" />
-    <Compile Include="ReflectionExtensions.cs" />
-    <Compile Include="StringExtensions.cs" />
-    <Compile Include="TaskExtensions.cs" />
-    <Compile Include="UriExtensions.cs" />
-  </ItemGroup>
+
   <ItemGroup>
     <None Include="packages.config" />
     <ProjectReference Include="..\..\submodules\splat\Splat\Splat-Net45.csproj" />