Move 'map attributes' into 'layouts'

data/maps/GraniteCave_1F/border.bin

@@ -1 +0,0 @@
-

data/maps/GraniteCave_1F/header.inc

@@ -1,5 +1,5 @@
 GraniteCave_1F: @ 8483F84
-	.4byte GraniteCave_1F_MapAttributes
+	.4byte GraniteCave_1F_Layout
 	.4byte GraniteCave_1F_MapEvents
 	.4byte GraniteCave_1F_MapScripts
 	.4byte 0x0

data/maps/GraniteCave_1F/map.bin

@@ -1,5 +0,0 @@
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