Remove unnecessary method.

lib/geocoder/lookups/pointpin.rb

@@ -13,7 +13,7 @@ module Geocoder::Lookup
     end
 
     def query_url(query)
-      "#{ protocol }://geo.pointp.in/#{ api_key }/json/#{ query.sanitized_text }"
+      "#{protocol}://geo.pointp.in/#{configuration.api_key}/json/#{query.sanitized_text}"
     end
 
   private
@@ -60,9 +60,5 @@ module Geocoder::Lookup
         "country_code" => "RD"
       }
     end
-
-    def api_key
-      configuration.api_key
-    end
   end
 end