[#2493] Stats extension clean-up

* removed templates_legacy - no-one uses these. Removed associated
  style.css.
* leaderboard goes with it as there is no jinja equiv and no interest.
  Removed associated controller, demo.html and app.js.

ckanext/stats/controller.py

@@ -1,8 +1,9 @@
 import ckan.plugins as p
-from ckan.lib.base import BaseController, config
+from ckan.lib.base import BaseController
 import stats as stats_lib
 import ckan.lib.helpers as h
 
+
 class StatsController(BaseController):
 
     def index(self):
@@ -19,13 +20,8 @@ def index(self):
         c.num_packages_by_week = rev_stats.get_num_packages_by_week()
         c.package_revisions_by_week = rev_stats.get_by_week('package_revisions')
 
-        # Used in the legacy CKAN templates.
-        c.packages_by_week = []
-
-        # Used in new CKAN templates gives more control to the templates for formatting.
         c.raw_packages_by_week = []
         for week_date, num_packages, cumulative_num_packages in c.num_packages_by_week:
-            c.packages_by_week.append('[new Date(%s), %s]' % (week_date.replace('-', ','), cumulative_num_packages))
             c.raw_packages_by_week.append({'date': h.date_str_to_datetime(week_date), 'total_packages': cumulative_num_packages})
 
         c.all_package_revisions = []
@@ -41,10 +37,3 @@ def index(self):
             c.raw_new_datasets.append({'date': h.date_str_to_datetime(week_date), 'new_packages': num_packages})
 
         return p.toolkit.render('ckanext/stats/index.html')
-
-    def leaderboard(self, id=None):
-        c = p.toolkit.c
-        c.solr_core_url = config.get('ckanext.stats.solr_core_url',
-                'http://solr.okfn.org/solr/ckan')
-        return p.toolkit.render('ckanext/stats/leaderboard.html')
-