remove extra logging to debug Passenger connection orphan issue

refs CNVS-37760

Change-Id: I99889adc330c214748719bf60ef3a2e4ff877c0e
Reviewed-on: https://gerrit.instructure.com/118597
Tested-by: Jenkins
Reviewed-by: Tyler Pickett <tpickett@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>

config.ru

@@ -1,7 +1,6 @@
 # This file is used by Rack-based servers to start the application.
 
 require ::File.expand_path('../config/environment',  __FILE__)
-$booted = true
 if defined?(CanvasRails)
   run CanvasRails::Application
 else

config/initializers/active_record.rb

@@ -1333,19 +1333,3 @@ module ReadonlyCloning
   end
 end
 ActiveRecord::Base.prepend(ReadonlyCloning)
-
-module ConnectionLeaseLogging
-  def lease
-    if @owner
-      ::Rails.logger.error("Connection in use by thread - status: #{@owner.status}")
-      ::Rails.logger.error("variables: #{Hash[@owner.keys.map{|v| [v, @owner[v]]}]}")
-      ::Rails.logger.error("backtrace: #{@owner.backtrace}")
-    end
-    if Thread.current[:name] == 'Main thread' && $booted
-      ::Rails.logger.error("Accessing connection from the Passenger Main thread")
-      ::Rails.logger.error("backtrace: #{caller}")
-    end
-    super
-  end
-end
-ActiveRecord::ConnectionAdapters::AbstractAdapter.prepend(ConnectionLeaseLogging)