Prior to this commit: In email marketing, when we click on the import button of the "mailing list contacts", we find a needlessly large gap beneath the contact list. Post this commit: The class which creates the space is removed and hence we get the required output. Task-3258581 closes odoo/odoo#119884 X-original-commit: 1ee98fb9f6bd8289c5ffcada14c3db62afba5a0d Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>