remove extra dependencies

Author: Jamil Maqdis Anton

src/SqlStreamStore.FSharp.fsproj

@@ -19,7 +19,6 @@
 
     <ItemGroup>
         <PackageReference Update="FSharp.Core" Version="4.7.2" />
-        <PackageReference Include="Insurello.AsyncExtra" Version="1.1.0" />
         <PackageReference Include="SqlStreamStore" Version="1.2.0-beta.8" />
         <PackageReference Include="SqlStreamStore.Postgres" Version="1.2.0-beta.8" />
     </ItemGroup>