Remove version tag from proj

src/Discord.Net.Core/Discord.Net.Core.csproj

@@ -8,12 +8,9 @@
     <TargetFrameworks Condition=" '$(OS)' == 'Windows_NT' ">net461;netstandard2.0;netstandard2.1</TargetFrameworks>
     <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netstandard2.0;netstandard2.1</TargetFrameworks>
     <PackageId>Discord.Net.Labs.Core</PackageId>
-    <Version>3.1.1</Version>
     <Product>Discord.Net.Labs.Core</Product>
     <RepositoryUrl>https://github.com/Discord-Net-Labs/Discord.Net-Labs</RepositoryUrl>
     <PackageIcon>Temporary.png</PackageIcon>
-    <AssemblyVersion>3.1.1</AssemblyVersion>
-    <FileVersion>3.1.1</FileVersion>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
   </PropertyGroup>
   <PropertyGroup>