Query: Remove `title` from the public query vars list.

[33706] added `title` as a public query var, but there's not really a practical need for this, and it interferes with any plugin that uses `title` as a query var for itself.

Props tyxla.

Fixes #35115 for trunk.


Built from https://develop.svn.wordpress.org/trunk@36034


git-svn-id: https://core.svn.wordpress.org/trunk@35999 1a063a9b-81f0-0310-95a4-ce76da25c4cd