Delete unnecessary import

SabineHaas · SabineHaas · commit f7bb81754a83 · 2018-05-03T07:45:17.000+02:00
diff --git a/windpowerlib/turbine_cluster_modelchain.py b/windpowerlib/turbine_cluster_modelchain.py
@@ -7,8 +7,7 @@
 __copyright__ = "Copyright oemof developer group"
 __license__ = "GPLv3"
 
-from windpowerlib import (tools, wind_farm, power_curves, wind_turbine_cluster,
-                          wake_losses)
+from windpowerlib import wake_losses
 from windpowerlib.modelchain import ModelChain
 
 
