Update bugzilla references to phabricator and remove some excess links

Change-Id: I2cb920fd084a1ab333678e1e3c8f4524b39cc6cd

tests/browser/features/live_preview_of_display_language.feature

@@ -33,7 +33,7 @@ Feature: Live preview of display language changes
       And I open Display panel of language settings
     Then I should see the text in the language panel in English
 
-  # https://bugzilla.wikimedia.org/57967
+  # https://phabricator.wikimedia.org/T59967
   # @clean @commons.wikimedia.beta.wmflabs.org
   Scenario: Live preview of display language changes can be reverted on closing the dialog on cancel from a different panel
     Given I open the Universal Language Selector

tests/browser/features/settings_panel.feature

@@ -79,7 +79,7 @@ Feature: Settings panel
     Then my interface language is "German"
 
   @login
-  Scenario: Regression test for bug 56913
+  Scenario: Regression test for bug T58913
 
     Given I am logged in
       And I have reset my preferences

tests/browser/features/step_definitions/cog_sidebar_user_steps.rb

@@ -4,7 +4,7 @@ end
 
 Given(/^I am on a page without interlanguage links$/) do
   visit NoInterlanguagePage #  .add_links_element.when_visible.should be_visible
-  # cannot do this because of https://bugzilla.wikimedia.org/show_bug.cgi?id=49139
+  # cannot do this because of https://phabricator.wikimedia.org/T51139
 end
 
 Given(/^I am on a talk page with interlanguage links$/) do