Revert "Ports Bay's stamina/sprinting intent system. (#8805)" (#9182)

This shit is just full of issues that keep popping up and frankly I can't be fucked to deal with them.

Note: I'll probably do the same thing again but very simplified later on. This iteration is a mistake in how much of a mess it is, unfortunately.

code/game/objects/items/toys.dm

@@ -339,8 +339,8 @@
 /obj/item/toy/snappop/Crossed(H as mob|obj)
 	if((ishuman(H))) //i guess carp and shit shouldn't set them off
 		var/mob/living/carbon/M = H
-		if(MOVING_QUICKLY(M))
-			to_chat(M, "<span class='warning'>You step on the snap pop!</span>")
+		if(M.m_intent == "run")
+			to_chat(M, SPAN_WARNING("You step on the snap pop!"))
 			do_pop()
 
 /obj/item/toy/snappop/proc/do_pop()

code/game/objects/items/weapons/material/caltrops.dm

@@ -35,7 +35,7 @@
 		if(H.shoes || H.wear_suit?.body_parts_covered & FEET)
 			damage_coef -= 0.1
 
-		if(MOVING_QUICKLY(H))
+		if (H.m_intent == "run")
 			damage_coef += 0.4