Remove deprecated ActiveSupport::Cache::Store.instrument

Author: rafaelfranca

activesupport/CHANGELOG.md

@@ -1,3 +1,8 @@
+*   Remove deprecated methods `ActiveSupport::Cache::Store.instrument` and
+    `ActiveSupport::Cache::Store.instrument=`.
+
+    *Rafael Mendonça França*
+
 *   Change the way in which callback chains can be halted.
 
     The preferred method to halt a callback chain from now on is to explicitly
@@ -8,7 +13,6 @@
     `Callbacks::CallbackChain.halt_and_display_warning_on_return_false`, will
     either not work at all or display a deprecation warning.
 
-
 *   Add Callbacks::CallbackChain.halt_and_display_warning_on_return_false
 
     Setting `Callbacks::CallbackChain.halt_and_display_warning_on_return_false`

activesupport/lib/active_support/cache.rb

@@ -8,7 +8,6 @@
 require 'active_support/core_ext/numeric/time'
 require 'active_support/core_ext/object/to_param'
 require 'active_support/core_ext/string/inflections'
-require 'active_support/deprecation'
 
 module ActiveSupport
   # See ActiveSupport::Cache::Store for documentation.
@@ -179,18 +178,6 @@ def mute
         @silence = previous_silence
       end
 
-      # :deprecated:
-      def self.instrument=(boolean)
-        ActiveSupport::Deprecation.warn "ActiveSupport::Cache.instrument= is deprecated and will be removed in Rails 5. Instrumentation is now always on so you can safely stop using it."
-        true
-      end
-
-      # :deprecated:
-      def self.instrument
-        ActiveSupport::Deprecation.warn "ActiveSupport::Cache.instrument is deprecated and will be removed in Rails 5. Instrumentation is now always on so you can safely stop using it."
-        true
-      end
-
       # Fetches data from the cache, using the given key. If there is data in
       # the cache with the given key, then that data is returned.
       #