Cleanup of deassert signals

Created by: silabs-oysteink

Removed reduntant 'deassert_we' in controller bypass. Stall signals to ID stage would prevent deasserted bits to propagate anyway.

Renamed 'deassert_we_special' to 'deassert_we'.

SEC clean.

Signed-off-by: Oystein Knauserud Oystein.Knauserud@silabs.com