Remove references to RAILS_ROOT

The last caller of PostgresAdmin.certificate_location
was removed in ManageIQ#22

Fixes ManageIQ#4


(transferred from ManageIQ/manageiq-gems-pending@ee90116)

lib/manageiq/appliance_console/postgres_admin.rb

@@ -2,8 +2,6 @@
 require 'pathname'
 require 'linux_admin'
 
-RAILS_ROOT ||= Pathname.new(__dir__).join("../../../")
-
 class PostgresAdmin
   def self.data_directory
     Pathname.new(ENV.fetch("APPLIANCE_PG_DATA"))
@@ -30,10 +28,6 @@ def self.user
     "postgres".freeze
   end
 
-  def self.certificate_location
-    RAILS_ROOT.join("certs")
-  end
-
   def self.logical_volume_name
     "lv_pg".freeze
   end

spec/spec_helper.rb.manageiq-gems-pending

@@ -10,11 +10,6 @@ $log ||= Logger.new("/dev/null")
 # $log ||= Logger.new(STDOUT)
 # $log.level = Logger::DEBUG
 
-# For Appliance console logging tests
-require 'tmpdir'
-RAILS_ROOT = Pathname.new(Dir.mktmpdir("manageiq-gems-pending"))
-Dir.mkdir(RAILS_ROOT.join("log"))
-
 # Requires supporting files with custom matchers and macros, etc,
 # in ./support/ and its subdirectories.
 Dir[File.expand_path(File.join(__dir__, 'support/**/*.rb'))].each { |f| require f }