bitraider removed what else can I delete to save space?

The steps to remove bit raider are as follows:

NOTE this is a complete download of the game again as you mentioned.

right mouse click on game shortcut and select open file location
open the launcher.settings file in notepad and locate the below line and edit to the below

, "PatchingMode": "{ \"swtor\": \"SSN\" }"
, "bitraider_disable": true

SAVE the changes.

Delete the BitRaider, Movie and Asset folders then start the launcher.

As long as you did the above you should be good. If not just delete the Move and Assets folder. If you have any issues, you can start over and do the above. Hope this helps.