Switch to @ModifyVariable to produce better bytecode

- @Inject + @WrapOperation worked but the output was pretty bad, this change does what it used to but in a cleaner way

modules/entity/src/main/java/io/github/fabricators_of_create/porting_lib/entity/mixin/common/MobMixin.java

@@ -3,13 +3,9 @@
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
-import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
-import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
-import com.llamalad7.mixinextras.sugar.Share;
-import com.llamalad7.mixinextras.sugar.ref.LocalRef;
-
 import io.github.fabricators_of_create.porting_lib.entity.events.LivingEntityEvents.ChangeTarget.ChangeTargetEvent;
 import io.github.fabricators_of_create.porting_lib.entity.events.LivingEntityEvents.ChangeTarget.ChangeTargetEvent.LivingTargetType;
 import io.github.fabricators_of_create.porting_lib.entity.events.MobEntitySetTargetCallback;
@@ -18,17 +14,13 @@
 
 @Mixin(Mob.class)
 public abstract class MobMixin {
-	@Inject(method = "setTarget", at = @At("HEAD"), cancellable = true)
-	private void port_lib$onChangeTarget(LivingEntity target, CallbackInfo ci, @Share("changeTargetEvent") LocalRef<ChangeTargetEvent> changeTargetEvent) {
-		changeTargetEvent.set(new ChangeTargetEvent((Mob) (Object) this, target, LivingTargetType.MOB_TARGET));
-		changeTargetEvent.get().sendEvent();
-		if (changeTargetEvent.get().isCanceled())
-			ci.cancel();
-	}
-
-	@WrapOperation(method = "setTarget", at = @At(value = "FIELD", target = "Lnet/minecraft/world/entity/Mob;target:Lnet/minecraft/world/entity/LivingEntity;"))
-	private void port_lib$wrapSetTarget(Mob instance, LivingEntity value, Operation<Void> original, @Share("changeTargetEvent") LocalRef<ChangeTargetEvent> changeTargetEvent) {
-		original.call(instance, changeTargetEvent.get().getNewTarget());
+	@ModifyVariable(method = "setTarget", at = @At("HEAD"), argsOnly = true)
+	private LivingEntity port_lib$onChangeTarget(LivingEntity value) {
+		ChangeTargetEvent changeTargetEvent = new ChangeTargetEvent((Mob) (Object) this, value, LivingTargetType.MOB_TARGET);
+		changeTargetEvent.sendEvent();
+		if (changeTargetEvent.isCanceled())
+			return null;
+		return changeTargetEvent.getNewTarget();
 	}
 
 	@Inject(method = "setTarget", at = @At("TAIL"))