Fix unused variable warnings

lib/geocoder/lookups/cloudmade.rb

@@ -24,7 +24,7 @@ module Geocoder::Lookup
     end
 
     def query_url_params(query)
-      params = {
+      {
         :query => query.sanitized_text,
         :return_location => true,
         :return_geometry => false

lib/geocoder/lookups/maxmind_local.rb

@@ -7,7 +7,7 @@ module Geocoder::Lookup
     def initialize
       begin
         require 'geoip'
-      rescue LoadError => e
+      rescue LoadError
         raise 'Could not load geoip dependency. To use MaxMind Local lookup you must add geoip gem to your Gemfile or have it installed in your system.'
       end
 
@@ -38,4 +38,4 @@ module Geocoder::Lookup
       result.nil? ? [] : [result.to_hash]
     end
   end
-end
\ No newline at end of file
+end