remove duplicate content include directive

Author: Lordfirespeed

CSync/CSync.csproj

@@ -38,7 +38,6 @@
 
     <ItemGroup>
         <Content Include="$(ProjectDir)assets/icons/icon.png" Pack="true" PackagePath="/"/>
-        <Content Include="$(ProjectDir)../README.md" Pack="true" PackagePath="/"/>
     </ItemGroup>
 
     <ItemGroup>