Move 'map attributes' into 'layouts'

data/maps/PetalburgCity_House2/border.bin

@@ -1 +0,0 @@
-





data/maps/PetalburgCity_House2/header.inc

@@ -1,5 +1,5 @@
 PetalburgCity_House2: @ 848306C
-	.4byte PetalburgCity_House2_MapAttributes
+	.4byte HouseWithBed_Layout
 	.4byte PetalburgCity_House2_MapEvents
 	.4byte PetalburgCity_House2_MapScripts
 	.4byte 0x0

data/maps/PetalburgCity_House2/map.bin

@@ -1 +0,0 @@
-nohi



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