chore: remove unused imports

Author: Ingrim4

orebfuscator-plugin/src/main/java/net/imprex/orebfuscator/obfuscation/ObfuscationAsyncListener.java

@@ -10,18 +10,14 @@
 import dev.imprex.orebfuscator.logging.OfcLogger;
 import dev.imprex.orebfuscator.obfuscation.ObfuscationPipeline;
 import dev.imprex.orebfuscator.statistics.InjectorStatistics;
-import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.CompletableFuture;
-import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import net.imprex.orebfuscator.Orebfuscator;
-import net.imprex.orebfuscator.OrebfuscatorCompatibility;
 import net.imprex.orebfuscator.iterop.BukkitChunkPacketAccessor;
 import net.imprex.orebfuscator.iterop.BukkitPlayerAccessor;
 import net.imprex.orebfuscator.iterop.BukkitPlayerAccessorManager;
 import net.imprex.orebfuscator.iterop.BukkitWorldAccessor;
-import net.imprex.orebfuscator.util.ServerVersion;
 import org.jspecify.annotations.NullMarked;
 
 @NullMarked