I spoke to one of the live dealers today whilst playing live roulette and will copy and paste the conversation below, will omit the dealer's name for dpa reasons:
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Dealer: Hello there Players, Good luck with your bets. º;
Dealer: Players, Thanks again for your tips...
funky1: where do the tips go, do the dealers get them?
Dealer: Yes.
funky1: thanks for the info, just wanted to check that the tips were actually going to the dealers and not the casino...
funky1: (-:
Dealer: You're Welcome... º0
Dealer: Goodluck with your bets.
Dealer: Thank you for your tips, Players..
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Looks like all is cool, and the dealers get the money