Removed certificate reference

Author: Avid29

src/Quarrel/Quarrel.csproj

@@ -429,7 +429,6 @@
     <Content Include="Assets\Logo\Wide310x150Logo.scale-200.png" />
     <Content Include="Assets\Logo\Wide310x150Logo.scale-400.png" />
     <Content Include="Properties\Default.rd.xml" />
-    <None Include="Quarrel-Alpha_Key.pfx" />
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">