Disable abstract parameter name collection when reobfuscating mod jars

See MinecraftForge/ForgeAutoRenamingTool#27. This would cause massive text files to be put into the final jar, increasing its size.

Author: Matyrobbrt

src/userdev/java/net/minecraftforge/gradle/userdev/UserDevPlugin.java

@@ -341,6 +341,8 @@ private NamedDomainObjectContainer<RenameJarInPlace> createReobfExtension(Projec
             final TaskProvider<Jar> jarTask = project.getTasks().named(jarName, Jar.class);
             task.getInput().set(jarTask.flatMap(AbstractArchiveTask::getArchiveFile));
 
+            task.getArgs().add("--disable-abstract-param"); // Mods don't need the FF file
+
             return task;
         });
         project.getExtensions().add("reobf", reobfExtension);