Remove closed Opole Kamien Sla airport and update Opole Polska Now frequency

Deleted Opole Kamien Sa Airport. Airport is closed and is now a race kart track.
See google maps sat picture:
https://www.google.com/maps/search/opole+kart+racing/@50.5317475,18.0766594,2204m/data=!3m1!1e3?entry=ttu&g_ep=EgoyMDI1MTAyOS4yIKXMDSoASAFQAw%3D%3D

Also corrected frequency for Opole Polska Now from 122.360 to 122.200.

Author: lordfolken

data/content/waypoint/country/PL-WPT-National-XCSoar.cup

@@ -46,8 +46,7 @@ name,code,country,lat,lon,elev,style,rwdir,rwlen,freq,desc
 "Nysa",,PL,5028.190N,01716.020E,215.0m,2,344,300.0m,,"Flugplatz"
 "Oksywie Mil",,PL,5434.767N,01831.033E,43.0m,5,130,2510.0m,124.500,"Flugplatz"
 "Olsztyn Dajtki",,PL,5346.383N,02024.900E,134.0m,2,100,830.0m,,"Flugplatz"
-"Opole Polska Now",,PL,5038.000N,01746.900E,189.0m,2,070,740.0m,122.360,"Flugplatz"
-"Opole Kamien Sla",,PL,5031.750N,01805.117E,207.0m,5,110,1900.0m,120.300,"Flugplatz"
+"Opole Polska Now",,PL,5038.000N,01746.900E,189.0m,2,070,740.0m,122.200,"Flugplatz"
 "Ostrow Wielk Gld",,PL,5142.067N,01750.733E,143.0m,4,110,890.0m,122.200,"Flugplatz"
 "Pila",,PL,5310.200N,01642.750E,82.0m,5,040,1500.0m,124.500,"Flugplatz"
 "Pinczow",,PL,5031.100N,02030.900E,186.0m,2,110,680.0m,122.300,"Flugplatz"