Comment, remove, or revise many unreferenced labels

data/maps/landmarks.asm

@@ -128,7 +128,7 @@ WhirlIslandsName:    db "WHIRL¯ISLANDS@"
 MtMortarName:        db "MT.MORTAR@"
 DragonsDenName:      db "DRAGON'S¯DEN@"
 IcePathName:         db "ICE PATH@"
-NotApplicableName:   db "N/A@" ; "オバケやしき" ("HAUNTED HOUSE") in Japanese
+NotApplicableName:   db "N/A@" ; unreferenced ; "オバケやしき" ("HAUNTED HOUSE") in Japanese
 PalletTownName:      db "PALLET TOWN@"
 ViridianCityName:    db "VIRIDIAN¯CITY@"
 PewterCityName:      db "PEWTER CITY@"
@@ -144,11 +144,11 @@ VictoryRoadName:     db "VICTORY¯ROAD@"
 MtMoonName:          db "MT.MOON@"
 RockTunnelName:      db "ROCK TUNNEL@"
 LavRadioTowerName:   db "LAV¯RADIO TOWER@"
-SilphCoName:         db "SILPH CO.@"
-SafariZoneName:      db "SAFARI ZONE@"
+SilphCoName:         db "SILPH CO.@" ; unreferenced
+SafariZoneName:      db "SAFARI ZONE@" ; unreferenced
 SeafoamIslandsName:  db "SEAFOAM¯ISLANDS@"
-PokemonMansionName:  db "#MON¯MANSION@"
-CeruleanCaveName:    db "CERULEAN¯CAVE@"
+PokemonMansionName:  db "#MON¯MANSION@" ; unreferenced
+CeruleanCaveName:    db "CERULEAN¯CAVE@" ; unreferenced
 Route1Name:          db "ROUTE 1@"
 Route2Name:          db "ROUTE 2@"
 Route3Name:          db "ROUTE 3@"
@@ -199,7 +199,7 @@ DarkCaveName:        db "DARK CAVE@"
 IlexForestName:      db "ILEX¯FOREST@"
 BurnedTowerName:     db "BURNED¯TOWER@"
 FastShipName:        db "FAST SHIP@"
-ViridianForestName:  db "VIRIDIAN¯FOREST@"
+ViridianForestName:  db "VIRIDIAN¯FOREST@" ; unreferenced
 DiglettsCaveName:    db "DIGLETT'S¯CAVE@"
 TohjoFallsName:      db "TOHJO FALLS@"
 UndergroundName:     db "UNDERGROUND@"