Remove unused language strings in com_contact
Correcting Notice [#31840]
Fix system tests for language changes.
Fix problem with select fields not in view.
[#31753] PGSQL Missing #__ prefix on CONSTRAINT "uc_ItemnameTagid" in installation/sql/postgresql/joomla.sql.
[#31894] Check for context in vote plugin
[#31749] JModuleHelper::isEnabled always returns true.
Fix regression in vote plugin caused by [31894].
 + [#31850] The parent item search ajax based on menu location. Thanks
Lu Nguyen
(Fix #1827)
 # [#31890] tagged items list has class "list-striped" and
"list-condensed" in code. Thanks Elin waring.
(Fix #1865)
Merge pull request #1942 from brianteeman/patch-13

Remove unused language strings in com_contact