Deleting Sound Effects

Hi Eric:
If you applyed the effects in a destructive way (the effect isn´t being applyed in real time), the reply is no, you can´t. A way of to prevent this is before you apply the effect, clone the audio track and apply the effect to the cloned track. You can to archieve the original track and in the future, if you decide by other effect, delete (or mute, or archieve) the effected track, un-archieve the original track, clone it newly and apply the new effect to the cloned track.
Once the effect is applyed destructively in a track, no way of directly restore it to the original condition.
Greetings.

It's worth having a browse of the Audio folder for the project (Loop Explorer or Windows Explorer) - a previous version may well still be in there

hth
p