Friendly URL does not match its page name after the available language is removed.

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE
• Fix Version/s: 6.2.2 CE GA3 , 6.2.X EE, 7.0.0 M2
• Component/s: Content Display Widgets > Language widget
• Labels:
  • 6.2.x-only
  • liferay-fixpack-administration-8-6210
  • liferay-fixpack-misc-7-6210
  • liferay-fixpack-platform-15-6210
  • liferay-fixpack-platform-25-6210
  • liferay-fixpack-wcm-core-11-6210
  • liferay-fixpack-wcm-core-18-6210
• Environment: Tomcat 7.0.42 + MySQL 5.5.34. Portal master GIT ID: 535110e98665c3f097ce5445daf3ef6c97a022c6.
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 14
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/16608

Steps to reproduce:

1. Create a site SiteA.
2. Create a page PageA with a particular locale (I used China).
3. Set the name and friendly url of this page.

   Name	Friendly URL
   PageA	/pagea
   PageAcn	/pageacn

4. Create a user usera and assign it to SiteA.
5. Change display language to Chinese for usera.
6. Log in with usera.
7. Click My Sites > SiteA.
8. User is redirected to PageAcn, the URL is like http://localhost:8080/zh/web/sitea/pageacn.
9. Remove the available language Chinese for SiteA.
10. Go to SiteA again with usera.

Expected result:
User is redirected to PageA, the URL is like http://localhost:8080/en/web/sitea/pagea.

Actual result:
User is redirected to PageA, but the URL is like http://localhost:8080/zh/web/sitea/pageacn.