Remove allow_concurrency and verification_timeout from ActiveRecord::Base (deprecated since 2.2).

activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb

@@ -88,26 +88,6 @@ def self.establish_connection(spec = nil)
     end
 
     class << self
-      # Deprecated and no longer has any effect.
-      def allow_concurrency
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.allow_concurrency has been deprecated and no longer has any effect. Please remove all references to allow_concurrency.")
-      end
-
-      # Deprecated and no longer has any effect.
-      def allow_concurrency=(flag)
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.allow_concurrency= has been deprecated and no longer has any effect. Please remove all references to allow_concurrency=.")
-      end
-
-      # Deprecated and no longer has any effect.
-      def verification_timeout
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.verification_timeout has been deprecated and no longer has any effect. Please remove all references to verification_timeout.")
-      end
-
-      # Deprecated and no longer has any effect.
-      def verification_timeout=(flag)
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.verification_timeout= has been deprecated and no longer has any effect. Please remove all references to verification_timeout=.")
-      end
-
       # Returns the connection currently associated with the class. This can
       # also be used to "borrow" the connection to do database work unrelated
       # to any of the specific Active Records.

activerecord/lib/active_record/connection_adapters/abstract_adapter.rb

@@ -39,7 +39,6 @@ class AbstractAdapter
       def initialize(connection, logger = nil) #:nodoc:
         @connection, @logger = connection, logger
         @runtime = 0
-        @last_verification = 0
         @query_cache_enabled = false
       end
 
@@ -208,10 +207,6 @@ def log(sql, name)
           end
           result
         rescue Exception => e
-          # Log message and raise exception.
-          # Set last_verification to 0, so that connection gets verified
-          # upon reentering the request loop
-          @last_verification = 0
           message = "#{e.class.name}: #{e.message}: #{sql}"
           log_info(message, name, 0)
           raise translate_exception(e, message)