remove unnecesary import
@@ -4,7 +4,7 @@ from astropy.coordinates import SkyOffsetFrame
from astropy.coordinates import Angle
from astropy.table import Table
from gammapy.data import FixedPointingInfo
-from gammapy.irf import EDispMap, PSFMap,EDispKernelMap
+from gammapy.irf import EDispMap, PSFMap
from gammapy.stats import WStatCountsStatistic
from gammapy.maps import Map, WcsNDMap
from gammapy.modeling.models import PowerLawSpectralModel
