MDL-43587 - User Profile - Custom menu field data should not be processed through language filter when saving

This patch will caused raw field data to be saved to the database without going through the format_string function first.

The application of the format_string() function has been moved to the code where for form field is actually displayed.

Affected files:
	user/profile/field/menu/field.class.php

Signed-off-by: Michael Milette <michael.milette@instruxmedia.com>