Fix Rubocop offenses

Author: n-rodriguez

lib/ajax-datatables-rails/orm/active_record.rb

@@ -35,15 +35,14 @@ def build_conditions
 
       # rubocop:disable Metrics/AbcSize
       def build_conditions_for_datatable
-        columns  = searchable_columns.reject(&:searched?)
-        criteria = search_for.inject([]) do |crit, atom|
+        columns = searchable_columns.reject(&:searched?)
+        search_for.inject([]) do |crit, atom|
           search = Datatable::SimpleSearch.new(value: atom, regex: datatable.search.regexp?)
           crit << columns.map do |simple_column|
             simple_column.search = search
             simple_column.search_query
           end.compact.reduce(:or)
         end.compact.reduce(:and)
-        criteria
       end
       # rubocop:enable Metrics/AbcSize