[0099] Fixed DB errors from previous updates

* Removed creature movement for NPC 18731 (Ambassador Hellmaw): TBC
creature
* Removed spell target position for spell 25649 (Translocate)
* Removed script for GO 181956 (Gilded Brazier): TBC GO
* Updated spawn data for creature 15590 (Ossirian Crystal Trigger) from
template
* Updated spawn data for creature 14494 (Eris Havenfire) from template
* Removed no longer used db_script_strings, replaced by SD2 scripts
* Reapplied db script from update 0067 erroneously removed by revision
0068 and thus correctly applies 0068
This fixes quest 502 (Elixir of Pain)
[0100] Fixed required races and prerequisite for quest 1716

* Fixed warlock quest 1716 (Devourer of Souls)
The quest was only available to gnomes (64) and humans (1) back in
Classic
Quest 1717 (Gakin's Summons) is not a prerequisite of quest 1716
it is only an alternate startup quest for warlocks in Ironforge (mainly
gnomes warlocks)