"Go around flaps"
(retract one step)
FCOM 3.03.23 p2
and 4.05.80 p5:
at acceleration altitude
- retract flaps on schedule
the schedule is not specified, so it can only be the same as the take off case, which for eng out is specified in FCOM 3.02.10 p4 and is the same as in normal take off, that is: at F speed, flaps 1, S speed flaps cero.
Any different procedure should be specified. If nothing is said, then flaps have to be retracted normally, or else you are inventing new procedures of your own.
Also take a look at the definition of F speed at FCOM 3.04.10 p2, if you still have any doubts.