Remove configurable language feature

src/main/java/client/Character.java

@@ -7074,7 +7074,6 @@ public class Character extends AbstractCharacterObject {
 
                         retClient.setAccountName(rs.getString("name"));
                         retClient.setCharacterSlots(rs.getByte("characterslots"));
-                        retClient.setLanguage(rs.getInt("language"));   // thanks Zein for noticing user language not overriding default once player is in-game
                     }
                 }
             }
@@ -11082,23 +11081,6 @@ public class Character extends AbstractCharacterObject {
         return this.ariantPoints;
     }
 
-    public void setLanguage(int num) {
-        getClient().setLanguage(num);
-
-        try (Connection con = DatabaseConnection.getConnection();
-             PreparedStatement ps = con.prepareStatement("UPDATE accounts SET language = ? WHERE id = ?")) {
-            ps.setInt(1, num);
-            ps.setInt(2, getClient().getAccID());
-            ps.executeUpdate();
-        } catch (SQLException e) {
-            e.printStackTrace();
-        }
-    }
-
-    public int getLanguage() {
-        return getClient().getLanguage();
-    }
-
     public boolean isChasing() {
         return chasing;
     }

src/main/java/client/Client.java

@@ -129,7 +129,6 @@ public class Client extends ChannelInboundHandlerAdapter {
     private Calendar tempBanCalendar;
     private long lastNpcClick;
     private long lastPacket = System.currentTimeMillis();
-    private int lang = 0;
 
     public enum Type {
         LOGIN,
@@ -523,7 +522,7 @@ public class Client extends ChannelInboundHandlerAdapter {
         }
 
         try (Connection con = DatabaseConnection.getConnection();
-             PreparedStatement ps = con.prepareStatement("SELECT id, password, gender, banned, pin, pic, characterslots, tos, language FROM accounts WHERE name = ?")) {
+             PreparedStatement ps = con.prepareStatement("SELECT id, password, gender, banned, pin, pic, characterslots, tos FROM accounts WHERE name = ?")) {
             ps.setString(1, login);
 
             try (ResultSet rs = ps.executeQuery()) {
@@ -541,7 +540,6 @@ public class Client extends ChannelInboundHandlerAdapter {
                     pic = rs.getString("pic");
                     gender = rs.getByte("gender");
                     characterSlots = rs.getByte("characterslots");
-                    lang = rs.getInt("language");
                     String passhash = rs.getString("password");
                     byte tos = rs.getByte("tos");
 
@@ -1125,12 +1123,4 @@ public class Client extends ChannelInboundHandlerAdapter {
     public boolean canBypassPic() {
         return LoginBypassCoordinator.getInstance().canLoginBypass(hwid, accId, true);
     }
-
-    public int getLanguage() {
-        return lang;
-    }
-
-    public void setLanguage(int lingua) {
-        this.lang = lingua;
-    }
 }

src/main/java/client/command/CommandsExecutor.java

@@ -24,7 +24,6 @@
 package client.command;
 
 import client.Client;
-import client.command.commands.gm0.ChangeLanguageCommand;
 import client.command.commands.gm0.DisposeCommand;
 import client.command.commands.gm0.DropLimitCommand;
 import client.command.commands.gm0.EnableAuthCommand;
@@ -345,7 +344,6 @@ public class CommandsExecutor {
         addCommand("uptime", UptimeCommand.class);
         addCommand("gacha", GachaCommand.class);
         addCommand("dispose", DisposeCommand.class);
-        addCommand("changel", ChangeLanguageCommand.class);
         addCommand("equiplv", EquipLvCommand.class);
         addCommand("showrates", ShowRatesCommand.class);
         addCommand("rates", RatesCommand.class);

src/main/java/client/command/commands/gm0/ChangeLanguageCommand.java

@@ -1,43 +0,0 @@
-/*
-    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
-    Copyleft (L) 2016 - 2019 RonanLana
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation version 3 as published by
-    the Free Software Foundation. You may not use, modify or distribute
-    this program under any other version of the GNU Affero General Public
-    License.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
-   @Author: Arthur L - Refactored command content into modules
-*/
-package client.command.commands.gm0;
-
-import client.Client;
-import client.command.Command;
-import client.command.CommandContext;
-
-public class ChangeLanguageCommand extends Command {
-    {
-        setDescription("Change language settings.");
-    }
-
-    @Override
-    public void execute(Client c, String[] params, CommandContext ctx) {
-        if (params.length < 1) {
-            c.getPlayer().yellowMessage("Syntax: !changel <0=ptb, 1=esp, 2=eng>");
-            return;
-        }
-        c.setLanguage(Integer.parseInt(params[0]));
-    }
-}