Move #isNpc method to PlayerUtils

- After dropping our hook to CombatTagPlus it is not relevant for it to be in PluginHooksService anymore

src/main/java/fr/xephi/authme/initialization/OnShutdownPlayerSaver.java

@@ -5,11 +5,11 @@ import fr.xephi.authme.data.auth.PlayerCache;
 import fr.xephi.authme.data.limbo.LimboService;
 import fr.xephi.authme.datasource.DataSource;
 import fr.xephi.authme.service.BukkitService;
-import fr.xephi.authme.service.PluginHookService;
 import fr.xephi.authme.service.ValidationService;
 import fr.xephi.authme.settings.Settings;
 import fr.xephi.authme.settings.SpawnLoader;
 import fr.xephi.authme.settings.properties.RestrictionSettings;
+import fr.xephi.authme.util.PlayerUtils;
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
 
@@ -31,8 +31,6 @@ public class OnShutdownPlayerSaver {
     @Inject
     private SpawnLoader spawnLoader;
     @Inject
-    private PluginHookService pluginHookService;
-    @Inject
     private PlayerCache playerCache;
     @Inject
     private LimboService limboService;
@@ -51,7 +49,7 @@ public class OnShutdownPlayerSaver {
 
     private void savePlayer(Player player) {
         final String name = player.getName().toLowerCase();
-        if (pluginHookService.isNpc(player) || validationService.isUnrestricted(name)) {
+        if (PlayerUtils.isNpc(player) || validationService.isUnrestricted(name)) {
             return;
         }
         if (limboService.hasLimboPlayer(name)) {