Xadmin2

Potential backdoors found in the following locations:

`/xadmin2/lua/xadmin/sh_config.lua` line 34: License holder is hard coded as default super user.
- fix: remove line
`/xadmin2/lua/xadmin/sh_xadmin.lua` line 618 and 551: License holder is hard coded in migrate commands.
- fix: remove line and change next line from `if (ply:SteamID64() == licenseholder)` to `if (ply.IsSuperAdmin())`
`/xadmin2/lua/xadmin/sv_xadmin.ua` line 684: Runs DRMe.
- fix: remove line

Please make the recommended fixes before using this leaked addon to ensure you don't accidentally make the original license holder as a super admin on your server.

Will consider posting a clean version of the asset once I'm confident I've removed any remaining threats in the code.