Fix synchronization of removeTrustWithoutCommit(Trust trust):
- This is a caller of updateScoresWithoutCommit() whose changes induced this branch. Therefore it has to constrain to its synchronization requirements
- Synchronizing on the WOT doesn't make any sense here as well as the caller will have to do different stuff on the WOT and synchronize on it anyway.
- The following commits on this branch will take care of fixing all callers of this function.