removing imports.py and increasing coverage

rowers/garmin_stuff.py

@@ -4,7 +4,6 @@ from rowers.utils import custom_exception_handler, NoTokenError
 from rowingdata import rowingdata
 from django.core.exceptions import PermissionDenied
 from rowers.utils import myqueue
-from rowers.imports import *
 import datetime
 
 import requests
@@ -20,7 +19,9 @@ from iso8601 import ParseError
 from rowers.plannedsessions import ps_dict_get_description
 
 import pandas as pd
-
+import arrow
+from rowers import dataprep
+import pytz
 
 import numpy
 import json