Remove deprecated wiki backup script

Server/Scripts/Backup/j7backalllocal

@@ -19,12 +19,4 @@ echo 'Backing up KANBOARD ...'
 sudo -u postgres pg_dump kanboard_db > /home/jovian/Local/Backup/Postgres/kanboard_dumpfile
 echo 'KANBOARD done.'
 
-echo 'Backing up WIKI ...'
-echo '> wiki db ...'
-sudo -u postgres pg_dump wiki_db > /home/jovian/Local/Backup/Postgres/wiki_dumpfile
-
-echo '> wiki files ...'
-tar chf /home/jovian/Local/Backup/Wiki/mediawiki.tar /var/www/mediawiki
-echo 'WIKI done.'
-
 echo 'Platform saved.'