I forgot to remove the default texture from the active ones before switching to Sphax 1.8. Please help

Put the summary of the bug you're having here
Texture pack Sphax 1.8 crashes game.
What I expected to happen was...:
Describe what you thought should happen here
I would get to see the Minecraft world differently.
What actually happened was...:
Describe what happened here
Crashes the game whenever started up.
Steps to Reproduce:
1. Start game.
2. ...
3. ...