They won't stop you being sore from handling your 5RM or anything...they are simply there for the joints, to serve as prevention/protection.
If you want to skip them for a cycle or for every cycle then feel free.
Do not expect much (if any) muscle growth in this phase though.
You may find them to function as a semi-cardio workout though and could lose a kg or two of bodyweight if you underestimate your caloric requirements (this could be good or bad).