fix: remove environment annotations and unused mixin

Author: Jamalam360

common/src/client/java/io/github/jamalam360/jamlib/client/mixin/AbstractSelectionListMixin.java

@@ -2,7 +2,6 @@
 
 import io.github.jamalam360.jamlib.client.mixinsupport.MutableSpriteImageWidget$Sprite;
 import net.minecraft.resources.Identifier;
-import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Mutable;
 import org.spongepowered.asm.mixin.Shadow;
@@ -11,7 +10,6 @@
 public class ImageWidget$SpriteMixin implements MutableSpriteImageWidget$Sprite {
 	@Mutable
 	@Shadow
-	@Final
 	private Identifier sprite;
 
 	@Override

common/src/client/java/io/github/jamalam360/jamlib/client/mixin/ImageWidget$SpriteMixin.java

@@ -12,7 +12,6 @@
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 @Mixin(ClientPacketListener.class)
-@Environment(EnvType.CLIENT)
 public class ClientPacketListenerMixin {
 	/**
 	 * Injection point taken from Fabric API - <a href="https://github.com/FabricMC/fabric/blob/1.21.2/fabric-networking-api-v1/src/client/java/net/fabricmc/fabric/mixin/networking/client/ClientPlayNetworkHandlerMixin.java#L54">...</a>

common/src/client/java/io/github/jamalam360/jamlib/client/mixin/event/ClientPacketListenerMixin.java

@@ -2,8 +2,6 @@
 
 import io.github.jamalam360.jamlib.events.client.ClientPlayLifecycleEvents;
 import io.netty.channel.ChannelHandlerContext;
-import net.fabricmc.api.EnvType;
-import net.fabricmc.api.Environment;
 import net.minecraft.client.Minecraft;
 import net.minecraft.network.Connection;
 import org.spongepowered.asm.mixin.Mixin;
@@ -12,7 +10,6 @@
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 @Mixin(Connection.class)
-@Environment(EnvType.CLIENT)
 public class ConnectionMixin {
 	@Inject(
 			method = "channelInactive",

common/src/client/java/io/github/jamalam360/jamlib/client/mixin/event/ConnectionMixin.java

@@ -2,14 +2,11 @@
 
 import dev.architectury.event.Event;
 import dev.architectury.event.EventFactory;
-import net.fabricmc.api.EnvType;
-import net.fabricmc.api.Environment;
 import net.minecraft.client.Minecraft;
 
 /**
  * Events for client-side player lifecycle events.
  */
-@Environment(EnvType.CLIENT)
 public class ClientPlayLifecycleEvents {
 	/**
 	 * Called when the local player has joined a logical server.
@@ -20,13 +17,11 @@ public class ClientPlayLifecycleEvents {
 	 */
 	public static final Event<Leave> DISCONNECT = EventFactory.createLoop(Leave.class);
 
-	@Environment(EnvType.CLIENT)
 	@FunctionalInterface
 	public interface Join {
 		void onJoin(Minecraft client);
 	}
 
-	@Environment(EnvType.CLIENT)
 	@FunctionalInterface
 	public interface Leave {
 		void onLeave(Minecraft client);

common/src/client/java/io/github/jamalam360/jamlib/events/client/ClientPlayLifecycleEvents.java

@@ -6,7 +6,6 @@
   "mixins": [
   ],
   "client": [
-    "AbstractSelectionListMixin",
     "ImageWidget$SpriteMixin",
     "event.ClientPacketListenerMixin",
     "event.ConnectionMixin"