Remove unneeded function.

app/stores/utils.py

@@ -1,25 +1,8 @@
-from math import radians, cos, sin, asin, sqrt
 from django.core.cache import cache
 from geopy.geocoders import GoogleV3
 from geopy.geocoders.base import GeocoderResultError
 
 
-def haversine(lon1, lat1, lon2, lat2):
-    """
-    Calculate the great circle distance between two points
-    on the earth (specified in decimal degrees)
-    """
-    # convert decimal degrees to radians
-    lon1, lat1, lon2, lat2 = map(radians, [lon1, lat1, lon2, lat2])
-    # haversine formula
-    dlon = lon2 - lon1
-    dlat = lat2 - lat1
-    a = sin(dlat/2)**2 + cos(lat1) * cos(lat2) * sin(dlon/2)**2
-    c = 2 * asin(sqrt(a))
-    km = 6367 * c
-    return km
-
-
 def caching_geo_lookup(address):
     """
     Preforms a geo lookup against Google V3 and caches the results