Try things

description TBD.  It'll be long.

Author: jonpryor

src/apksigner/apksigner.csproj

@@ -19,7 +19,7 @@
   <ItemGroup>
     <!-- There isn't an actual dependency here, but we can only build one 'gradlew' project
          at a time, and adding <ProjectReference> between them ensures they run sequentially. -->
-    <ProjectReference Include="..\..\external\Java.Interop\tools\java-source-utils\java-source-utils.csproj" ReferenceOutputAssembly="False" SkipGetTargetFrameworkProperties="True" AdditionalProperties="TargetFramework=$(DotNetTargetFramework)" />
+    <ProjectReference Include="..\..\external\Java.Interop\tools\java-source-utils\java-source-utils.csproj" ReferenceOutputAssembly="False" />
   </ItemGroup>
 
   <Import Project="apksigner.targets" />