Apply basket calendar json changes

Author: d-oit

assets/free_basket_calendar.json

@@ -1,22 +1,4 @@
 [
-    {
-        "name": "Braunschweig vs. Bonn",
-        "begin": "2025-01-05T16:30:00+01:00",
-        "end": "2025-01-05T18:00:00+01:00",
-        "description": "Basketball game between Braunschweig and Bonn. This is a match from the 15th matchday of the BBL.",
-        "location": "www.youtube.com",
-        "url": "https://www.youtube.com/channel/UCZMsvbAhhRblVGXmEXW8TSA",
-        "league": "BBL"
-    },
-    {
-        "name": "Boston Celtics vs. Oklahoma City Thunder",
-        "begin": "2025-01-05T21:10:00+01:00",
-        "end": "2025-01-06T00:40:00+01:00",
-        "description": "Live basketball game between Boston Celtics and Oklahoma City Thunder.",
-        "location": "ran.de",
-        "url": "https://ran.de",
-        "league": "NBA"
-    },
     {
         "name": "Olympiakos Pir\u00e4us vs. FC Bayern M\u00fcnchen",
         "begin": "2025-01-10T20:00:00+01:00",