remove debug prints and raise actual Exception

this should be replaced with an actual typed exception

freecad/kiconnect/api.py

@@ -61,12 +61,11 @@ class APIObject(BaseObject):
         if self.is_connected:
             self.kicad_board = self.kicad.get_board()
             polygons = Board.extract_polygons(self.kicad_board)
-            print('>', polygons)
 
             for poly in polygons:
                 self.polygons[poly.id.value] = poly
         else:
-            print('*****NOT CONNECTED')
+            raise Exception('KiCAD API not connected.')
 
     @property
     def is_connected(self):
@@ -77,7 +76,6 @@ class APIObject(BaseObject):
         return self.feature.Connected
 
     def get_polygon(self, polygon_id):
-        print(polygon_id, self.polygons)
         self.refresh_polygons()
         return self.polygons.get(polygon_id)