Replace "Unreferenced" labels with "; unreferenced" comments

engine/items/mart.asm

@@ -722,7 +722,7 @@ SellMenu:
 	and a
 	ret
 
-.Unreferenced_NothingToSell:
+.NothingToSell: ; unreferenced
 	ld hl, .NothingToSellText
 	call MenuTextboxBackup
 	and a

engine/items/pack.asm

@@ -499,7 +499,7 @@ TossMenu:
 .finish
 	ret
 
-Unreferenced_ResetPocketCursorPositions:
+ResetPocketCursorPositions: ; unreferenced
 	ld a, [wCurPocket]
 	and a ; ITEM_POCKET
 	jr z, .items
@@ -1434,7 +1434,7 @@ Pack_GetItemName:
 	call CopyName1
 	ret
 
-Unreferenced_Pack_ClearTilemap:
+Pack_ClearTilemap: ; unreferenced
 	hlcoord 0, 0
 	ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
 	ld a, " "

engine/items/tmhm.asm

@@ -436,7 +436,7 @@ TMHMPocket_GetCurrentLineCoord:
 	jr nz, .loop
 	ret
 
-Unreferenced_Function2ca95:
+Function2ca95: ; unreferenced
 	pop hl
 	ld bc, 3
 	add hl, bc
@@ -484,7 +484,7 @@ TMHM_PlaySFX_ReadText2:
 	pop de
 	ret
 
-Unreferenced_Function2cadf:
+Function2cadf: ; unreferenced
 	call ConvertCurItemIntoCurTMHM
 	call .CheckHaveRoomForTMHM
 	ld hl, .NoRoomTMHMText