Query: Add a WP::remove_query_var() helper function.

This makes cleaning up public query vars easier.

Fixes #35234.

git-svn-id: https://develop.svn.wordpress.org/trunk@36177 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp.php

@@ -95,6 +95,17 @@ class WP {
 			$this->public_query_vars[] = $qv;
 	}
 
+	/**
+	 * Remove name from list of public query variables.
+	 *
+	 * @since 4.5.0
+	 *
+	 * @param string $name Query variable name.
+	 */
+	public function remove_query_var( $name ) {
+		$this->public_query_vars = array_diff( $this->public_query_vars, array( $name ) );
+	}
+
 	/**
 	 * Set the value of a query variable.
 	 *