[pre-commit.ci] auto fixes from pre-commit.com hooks

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scripts/get_installed_capacity.py

@@ -10,7 +10,6 @@
 import json
 
 import boto3
-import xarray
 import xarray as xr
 from nowcasting_datamodel.connection import DatabaseConnection
 from nowcasting_datamodel.models.base import Base_PV
@@ -37,7 +36,6 @@
 # get pv systems from database and update
 connection = DatabaseConnection(url=db_url, base=Base_PV, echo=True)
 with connection.get_session() as session:
-
     pv_systems = session.query(PVSystemSQL).all()
 
     for pv_system in pv_systems: