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-rw-r--r--src/airport.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/airport.h b/src/airport.h
index 0f0e8ed36..ac2d369dd 100644
--- a/src/airport.h
+++ b/src/airport.h
@@ -197,8 +197,4 @@ const AirportFTAClass *GetAirport(const byte airport_type);
*/
uint32 GetValidAirports();
-
-/* Calculate the noise this type airport will generate */
-uint8 GetAirportNoiseLevelForTown(const AirportFTAClass *afc, TileIndex town_tile, TileIndex tile);
-
#endif /* AIRPORT_H */