eng/nuget.props: Resolved conflict - cannot specify PackageLicenseExpression and PackageLicenseFile at the same time. Removed the PackageLicenseFile property, but kept the automation to pack the file into the NuGet package.

Author: NightOwl888

eng/nuget.props

@@ -26,14 +26,13 @@
     <PackageIcon>lucene-net-icon-128x128.png</PackageIcon>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
     <PackageReadmeFile>readme.md</PackageReadmeFile>
-    <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
     <PackageNoticeFile>NOTICE.txt</PackageNoticeFile>
     <ReleaseNotesUrl Condition=" '$(PackageVersion)' != '' ">https://github.com/$(GitHubOrganization)/$(GitHubProject)/releases/tag/v$(PackageVersion)</ReleaseNotesUrl>
     <PackageReleaseNotes>$(ReleaseNotesUrl)</PackageReleaseNotes>
   </PropertyGroup>
   <ItemGroup>
     <None Include="$(RepositoryRoot)README.md" Pack="true" PackagePath="$(PackageReadmeFile)"/>
-    <None Include="$(RepositoryRoot)LICENSE.txt" Pack="true" PackagePath="$(PackageLicenseFile)"/>
+    <None Include="$(RepositoryRoot)LICENSE.txt" Pack="true" PackagePath="LICENSE.txt"/>
     <None Include="$(RepositoryRoot)NOTICE.txt" Pack="true" PackagePath="$(PackageNoticeFile)"/>
     <None Include="$(RepositoryRoot)branding\$(PackageIcon)" Pack="true" PackagePath="$(PackageIcon)" Visible="false"/>
   </ItemGroup>