Fix getAllNodes cache not working properly, remove pre-process contexts on Bungee & cleanup some unused methods

bukkit/src/main/java/me/lucko/luckperms/bukkit/LPBukkitPlugin.java

@@ -591,16 +591,6 @@ public class LPBukkitPlugin extends JavaPlugin implements LuckPermsPlugin {
         return map;
     }
 
-    @SuppressWarnings("deprecation")
-    @Override
-    public UUID getUuidFromUsername(String playerName) {
-        try {
-            return getServer().getOfflinePlayer(playerName).getUniqueId();
-        } catch (Exception e) {
-            return null;
-        }
-    }
-
     private void registerPermissions(PermissionDefault def) {
         PluginManager pm = getServer().getPluginManager();
 

bukkit/src/main/java/me/lucko/luckperms/bukkit/migration/MigrationBPermissions.java

@@ -41,6 +41,8 @@ import me.lucko.luckperms.common.plugin.LuckPermsPlugin;
 import me.lucko.luckperms.common.utils.Predicates;
 import me.lucko.luckperms.common.utils.ProgressLogger;
 
+import org.bukkit.Bukkit;
+
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.util.Collections;
@@ -130,11 +132,16 @@ public class MigrationBPermissions extends SubCommand<Object> {
             AtomicInteger userCount = new AtomicInteger(0);
             for (Calculable user : world.getAll(CalculableType.USER)) {
                 // There is no mention of UUIDs in the API. I assume that name = uuid. idk?
-                UUID uuid;
+                UUID uuid = null;
                 try {
                     uuid = UUID.fromString(user.getName());
                 } catch (IllegalArgumentException e) {
-                    uuid = plugin.getUuidFromUsername(user.getName());
+                    try {
+                        //noinspection deprecation
+                        uuid = Bukkit.getOfflinePlayer(user.getName()).getUniqueId();
+                    } catch (Exception ex) {
+                        e.printStackTrace();
+                    }
                 }
 
                 if (uuid == null) {

bukkit/src/main/java/me/lucko/luckperms/bukkit/migration/MigrationPermissionsEx.java

@@ -195,7 +195,11 @@ public class MigrationPermissionsEx extends SubCommand<Object> {
             } catch (IllegalArgumentException e) {
                 u = ni.nameToUUID(user.getIdentifier());
                 if (u == null) {
-                    u = plugin.getUuidFromUsername(user.getIdentifier());
+                    try {
+                        u = Bukkit.getOfflinePlayer(user.getIdentifier()).getUniqueId();
+                    } catch (Exception ex) {
+                        e.printStackTrace();
+                    }
                 }
             }