Fix spectators not seeing race timer if they start to spectate someone during their lap

Currently race data is sent here for the new spectatee and then immediately after that reset here.

I removed the reset from CSQC and improved the SVQC to have an if for whether is should init or clear race data depending on if they're now spectating a racist or not. No one outside of Race or CTS should have race stats and therefore I don't see it necessary to clear race data outside of these modes.