fix: don't set url to None

src/aare/gui/scan_logic/rotation_scan_manager.py

@@ -10,10 +10,8 @@ class RotationScanManager(QObject):
         super().__init__(parent)
         self.__beamline = mx_beamline()
         self.__detector_url = get_jfjoch_url(self.__beamline)
-        self.__detector_url = None
 
     @Slot(CompletedRotationScan)
     def scan_completed(self, r: CompletedRotationScan):
         if r.result.file_prefix is not None:
-            # self.file_ready.emit(r.result.file_prefix, 0)
             self.file_ready.emit(self.__detector_url, 0)