Codefix: Compile warning with newer C++ compiler on MinGW. (#12689)

> template-id not allowed for constructor in C++20

src/base_station_base.h

@@ -221,7 +221,7 @@ struct SpecializedStation : public BaseStation {
 	 * Set station type correctly
 	 * @param tile The base tile of the station.
 	 */
-	inline SpecializedStation<T, Tis_waypoint>(TileIndex tile) :
+	inline SpecializedStation(TileIndex tile) :
 			BaseStation(tile)
 	{
 		this->facilities = EXPECTED_FACIL;

src/vehicle_base.h

@@ -1100,7 +1100,7 @@ struct SpecializedVehicle : public Vehicle {
 	/**
 	 * Set vehicle type correctly
 	 */
-	inline SpecializedVehicle<T, Type>() : Vehicle(Type)
+	inline SpecializedVehicle() : Vehicle(Type)
 	{
 		this->sprite_cache.sprite_seq.count = 1;
 	}