[PVP] Fixed some issues in the match interval:
-Fixed class not unloading when leaving match.
-Stopped checking dead players in interval, which fixes players getting kicked out of matches after falling out of the region with respawntime.
-Fixed class picker not closing with respawntime in non-captain modes.
-Fixed respawntime not resetting after respawning in non-captain modes.
-Fixed choosing respawn locations with respawntime in non-captain modes.