Disable shuttle calling during blob rounds

[AlyasGrey]

I feel like a big part of the shuttle calls stems from players doing jobs that don't necessarily contribute to combatting the blob becoming bored and feeling that whatever they would like to do that round could be ended at any moment.

Theoretically this is a mode that encourages cooperation and allows everyone to contribute to fighting the antagonists, but when you are dealing with situations such as crowded maintenance areas or the blob being in a highly restricted area... such as armory/sec... that can end up limiting the ability of everyone that wants to from participating meaningfully in fighting the blob(s). So it's entirely possible you end up with like a dozen people fighting and 80+ playing a game of "wait for the round to end".