Emerald Dragons no longer have 0% health events

[Day36512]

Events happen at 75, 50 or 25 percent health and should not include a 0% event.

Changes Proposed:

This PR proposes changes to:

• [X] Scripts (bosses, spell scripts, creature scripts).

SOURCE:

The changes have been validated through:

• [X] Live research (checked on live servers, e.g Classic WotLK, Retail, etc.)
• [X] Video evidence, knowledge databases or other public sources (e.g forums, Wowhead, etc.)

Video showing Dot event does not happen at 0% as an example: https://youtu.be/Wos1qtt280g?si=U6Kif8SeUgVI51lR

Tests Performed:

This PR has been:

• [X] Tested in-game by the author.

[elthehablo]

Might as well change the script to use ScheduleHealthCheckEvent. It's the more modern and preferred approach. It can be called on reset

[elthehablo]

Actually I 100% forgot this is not BossAI and cannot be and I don't think it is implemented for ScriptedAI