if you either paint over them or remove the entire loom then yes, side repeaters are irrelevant then.
(3) Nothing in these Regulations shall require any lamp or reflector to be fitted between sunrise and sunset to-
(a) a vehicle not fitted with any front or rear position lamp,
&(4) Without prejudice to regulation 16, for the purposes of these Regulations a lamp shall not be treated as being a lamp if it is-
(a) so painted over or masked that it is not capable of being immediately used or readily put to use; or
(b) an electric lamp which is not provided with any system of wiring by means of which that lamp is, or can readily be, connected with a source of electricity.