Update project details for packing

Uses SPDX for the license rather than embedding a file
Removes unneeded repository properties

Author: Turnerj

src/Directory.Build.props

@@ -7,13 +7,9 @@
 
     <PackageId>$(AssemblyName)</PackageId>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
-    <PackageLicenseFile>License.txt</PackageLicenseFile>
+    <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/TurnerSoftware/BuildVersioning</PackageProjectUrl>
     <PackageBaseTags>semver;semantic;versioning;git</PackageBaseTags>
-    
-    <RepositoryUrl>https://github.com/TurnerSoftware/BuildVersioning.git</RepositoryUrl>
-    <RepositoryType>git</RepositoryType>
-    <RepositoryBranch>main</RepositoryBranch>
 
     <!-- SourceLink Support -->
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
@@ -23,12 +19,9 @@
 
     <LangVersion>Latest</LangVersion>
   </PropertyGroup>
+  
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
   </ItemGroup>
-
-  <ItemGroup>
-    <None Include="..\..\License.txt" Pack="true" PackagePath="$(PackageLicenseFile)"/>
-  </ItemGroup>
 
 </Project>