Revert "[MIRROR] Replace all secondary flags with bitflags stored in the flags_2 var" (#2457)

ok you know what yeah i think i'll properly mirror https://github.com/Citadel-Station-13/Citadel-Station-13/pull/2411

code/modules/language/drone.dm

@@ -1,12 +1,12 @@
 /datum/language/drone
 	name = "Drone"
-	desc = "A heavily encoded damage control coordination stream, with special flags_1 for hats."
+	desc = "A heavily encoded damage control coordination stream, with special flags for hats."
 	speech_verb = "chitters"
 	ask_verb = "chitters inquisitively"
 	exclaim_verb = "chitters loudly"
 	spans = list(SPAN_ROBOT)
 	key = "d"
-	flags_1 = NO_STUTTER
+	flags = NO_STUTTER
 	syllables = list(".", "|")
 	// ...|..||.||||.|.||.|.|.|||.|||
 	space_chance = 0