This removes the calls to top and bottom for content inset of the
map view when calculating the edge padding for following. A previous
commit added this along with the left and right values. This
eliminates a bug where the map did not scroll to the correct location
for the user dot and also a bug in
`didUpdateLocationWithUserTrackingAnimated:` where the map panning
operations would always occur because the current and correct points
never matched up even if a stream of location values that were the
same were processed.
26c32f5c11