Use old calculation of city visits in right sidebar on Map page due to performance issues

CHANGELOG.md

@@ -15,7 +15,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Changed
 
-- Calculation of city visits that are shown in right sidebar on Map page was reworked and now is more accurate.
 - Order of points on Points page is now descending by timestamp instead of ascending.
 
 ---

app/controllers/map_controller.rb

@@ -6,7 +6,7 @@ class MapController < ApplicationController
   def index
     @points = current_user.tracked_points.without_raw_data.where('timestamp >= ? AND timestamp <= ?', start_at, end_at).order(timestamp: :asc)
 
-    @countries_and_cities = Visits::Calculate.new(@points).uniq_visits
+    @countries_and_cities = CountriesAndCities.new(@points).call
     @coordinates =
       @points.pluck(:latitude, :longitude, :battery, :altitude, :timestamp, :velocity, :id)
              .map { [_1.to_f, _2.to_f, _3.to_s, _4.to_s, _5.to_s, _6.to_s, _7] }