That is a very long winded way to remove one Wormhole from a map. If you just want to remove them from the Random maps, and random Special categories, follow this:
1. Open your
Sins main directory, you should know where this is.
2. Open the
GameInfo folder.
3. Select the file:
GalaxyScenarioDef.GALAXYSCENARIODEF4. Ctrl+C, Ctrl+V. This will copy it straight into this folder and you now have a backup with
Copy of... in front of it.
5. Open the original file in
Notepad.
6. Ctrl+F, then type:
PlanetWormhole7. Press
Enter twice.
8. Now replace
PlanetWormhole with some other planet. [b]PlanetAsteroid[b] say...
All randomly loaded maps
should now not contain any Wormholes. You may notice a slight increase in the amount of Asteroids, but other than that, there should be no side effects.
Any problems, just post back here

Good luck.