Revert "fix mat (#37423)" (#37449)

This reverts commit c948344.

Author: MercuriusGH

code/modules/mob/inventory.dm

@@ -221,8 +221,7 @@
 		return 0
 
 	// adjacent only loc checks one way around, so first part is necessary, also for anything inside too
-	//By using the item's adjacent check instead of the user's, we allow for some item exceptions (e.g.: battlemat)
-	if(W.loc && !W.recursive_in_contents_of(src) && !W.Adjacent(src) && !W.arcanetampered)
+	if(W.loc && !W.recursive_in_contents_of(src) && !Adjacent(W) && !W.arcanetampered)
 		return 0
 
 	if((W.flags & MUSTTWOHAND) && !(M_STRONG in mutations))