fix: Making pep8 happy

misp_modules/modules/import_mod/csvimport.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-from collections import defaultdict
 from pymisp import MISPEvent, MISPObject
 from pymisp import __path__ as pymisp_path
 import csv
@@ -7,7 +6,6 @@ import io
 import json
 import os
 import base64
-import pymisp
 
 misperrors = {'error': 'Error'}
 moduleinfo = {'version': '0.1', 'author': 'Christian Studer',