Remove unneeded Time patch to support Ruby 1.9

Author: rafaelfranca

activesupport/lib/active_support/core_ext/time.rb

@@ -1,5 +1,4 @@
 require 'active_support/core_ext/time/acts_like'
 require 'active_support/core_ext/time/calculations'
 require 'active_support/core_ext/time/conversions'
-require 'active_support/core_ext/time/marshal'
 require 'active_support/core_ext/time/zones'

activesupport/lib/active_support/core_ext/time/marshal.rb

@@ -1,30 +1,3 @@
-# Ruby 1.9.2 adds utc_offset and zone to Time, but marshaling only
-# preserves utc_offset. Preserve zone also, even though it may not
-# work in some edge cases.
-if Time.local(2010).zone != Marshal.load(Marshal.dump(Time.local(2010))).zone
-  class Time
-    class << self
-      alias_method :_load_without_zone, :_load
-      def _load(marshaled_time)
-        time = _load_without_zone(marshaled_time)
-        time.instance_eval do
-          if zone = defined?(@_zone) && remove_instance_variable('@_zone')
-            ary = to_a
-            ary[0] += subsec if ary[0] == sec
-            ary[-1] = zone
-            utc? ? Time.utc(*ary) : Time.local(*ary)
-          else
-            self
-          end
-        end
-      end
-    end
+require 'active_support/deprecation'
 
-    alias_method :_dump_without_zone, :_dump
-    def _dump(*args)
-      obj = dup
-      obj.instance_variable_set('@_zone', zone)
-      obj.send :_dump_without_zone, *args
-    end
-  end
-end
+ActiveSupport::Deprecation.warn("This is deprecated and will be removed in Rails 5.1 with no replacement.")