#1055 Remove multiple "please register" messages

Part 1:
- Use only one message entry for "Please register", that may have to be adapted to reflect the proper /register arguments
- Remove other message entries from code and from the messages files

Breaking change: reg_email_msg is also removed

src/main/resources/messages/messages_eu.yml

@@ -17,7 +17,6 @@ no_perm: '&cBaimenik ez'
 error: '&fErrorea; Mesedez jarri kontaktuan administratzaile batekin'
 login_msg: '&cMesedez erabili "/login pasahitza" saioa hasteko'
 reg_msg: '&cMesedez erabili "/register pasahitza pasahitza" erregistratzeko'
-reg_email_msg: '&cMesdez erabili "/register <email> <confirmEmail>" erregistratzeko'
 usage_unreg: '&cErabili: /unregister password'
 pwd_changed: '&cPasahitza aldatu duzu!'
 user_unknown: '&cErabiltzailea ez dago erregistratuta'
@@ -52,9 +51,6 @@ country_banned: '[AuthMe] Zure herrialdea blokeatuta dago zerbitzari honetan'
 # TODO same_ip_online: 'A player with the same IP is already in game!'
 # TODO denied_chat: '&cIn order to chat you must be authenticated!'
 # TODO kick_antibot: 'AntiBot protection mode is enabled! You have to wait some minutes before joining the server.'
-# TODO reg_no_repeat_msg: '&3Please, register to the server with the command "/register <password>"'
-# TODO reg_email_no_repeat_msg: '&3Please, register to the server with the command "/register <email>"'
-# TODO reg_psw_email_msg: '&3Please, register to the server with the command "/register <password> <email>"'
 # TODO password_error_nick: '&cYou can''t use your name as password, please choose another one...'
 # TODO password_error_unsafe: '&cThe chosen password isn''t safe, please choose another one...'
 # TODO password_error_chars: '&4Your password contains illegal characters. Allowed chars: REG_EX'