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/ninja/suit/gloves.dm

@@ -77,5 +77,5 @@
 
 /obj/item/clothing/gloves/space_ninja/examine(mob/user)
 	..()
-	if(flags_1 & NODROP_1)
+	if(flags & NODROP)
 		to_chat(user, "The energy drain mechanism is: <B>[candrain?"active":"inactive"]</B>.")

code/modules/ninja/suit/shoes.dm

@@ -5,7 +5,7 @@
 	icon_state = "s-ninja"
 	item_state = "secshoes"
 	permeability_coefficient = 0.01
-	flags_1 = NOSLIP_1
+	flags = NOSLIP
 	resistance_flags = LAVA_PROOF | FIRE_PROOF | ACID_PROOF
 	armor = list(melee = 60, bullet = 50, laser = 30,energy = 15, bomb = 30, bio = 30, rad = 30, fire = 100, acid = 100)
 	strip_delay = 120

code/modules/ninja/suit/suit.dm

@@ -130,15 +130,15 @@ Contents:
 		to_chat(H, "<span class='userdanger'>ERROR</span>: 110223 UNABLE TO LOCATE HAND GEAR\nABORTING...")
 		return FALSE
 	affecting = H
-	flags_1 |= NODROP_1 //colons make me go all |=
+	flags |= NODROP //colons make me go all |=
 	slowdown = FALSE
 	n_hood = H.head
-	n_hood.flags_1 |= NODROP_1
+	n_hood.flags |= NODROP
 	n_shoes = H.shoes
-	n_shoes.flags_1 |= NODROP_1
+	n_shoes.flags |= NODROP
 	n_shoes.slowdown--
 	n_gloves = H.gloves
-	n_gloves.flags_1 |= NODROP_1
+	n_gloves.flags |= NODROP
 	return TRUE
 
 /obj/item/clothing/suit/space/space_ninja/proc/lockIcons(mob/living/carbon/human/H)
@@ -150,18 +150,18 @@ Contents:
 //This proc allows the suit to be taken off.
 /obj/item/clothing/suit/space/space_ninja/proc/unlock_suit()
 	affecting = null
-	flags_1 &= ~NODROP_1
+	flags &= ~NODROP
 	slowdown = 1
 	icon_state = "s-ninja"
 	if(n_hood)//Should be attached, might not be attached.
-		n_hood.flags_1 &= ~NODROP_1
+		n_hood.flags &= ~NODROP
 	if(n_shoes)
-		n_shoes.flags_1 &= ~NODROP_1
+		n_shoes.flags &= ~NODROP
 		n_shoes.slowdown++
 	if(n_gloves)
 		n_gloves.icon_state = "s-ninja"
 		n_gloves.item_state = "s-ninja"
-		n_gloves.flags_1 &= ~NODROP_1
+		n_gloves.flags &= ~NODROP
 		n_gloves.candrain=0
 		n_gloves.draining=0