[BUG] Spectators can execute /botcmd removebot

[ptdev]

Describe the bug
Spectators can go into any server where people are playing with bots and just run /botcmd removebot from spectator.
This has already been abused on our servers and probably shouldn't be allowed

To Reproduce
Steps to reproduce the behavior:

• Go spectate any server where somebody is playing a bot
• Type /botcmd removebot on the console

Expected behavior
Nothing, spectators shouldn't be allowed to affect the running game

Screenshots
n/a

Environment(please complete the following information):

• Operation System: Linux
• Processor Architecture: x86_64
• MVDSV Version: not sure, pulled and compiled from github about 2 weeks ago
• KTX Version: not sure, pulled and compiled from github about 2 weeks ago

Additional context
n/a