[DEV] Revert "[DEV] Fix audio repeating due to SMSG_INIT_WORLD_STATES."

This reverts commit c63de6cd4f7913e2398e63af7c88f1e74d46cb30.

Signed-off-by: Salja <salja8840@gmail.com>
[z2437] Cleanup world state sending

As we understand most of the world states now there really is no need to send dummy states if the zones/battlegrounds are not implemented/enabled

See https://github.com/cmangos/issues/wiki/World-States for a list of known world states

(based on commit [12600] - 59d1aa5)

(based on commit [s2090] - c797901)