By removing one sentence that is not true on private wikis.
Per Siebrand on previous patch, better simplify the logout
interface than make it heavier.
Bug: 33439
Change-Id: I1f02d4ba6981b34aa2ff16a0c6632e0b58b23bb4
# Login and logout pages
'logouttext' => "'''You are now logged out.'''
-You can continue to use {{SITENAME}} anonymously, or you can <span class='plainlinks'>[$1 log in again]</span> as the same or as a different user.
Note that some pages may continue to be displayed as if you were still logged in, until you clear your browser cache.",
'welcomeuser' => 'Welcome, $1!',
'welcomecreation-msg' => 'Your account has been created.