Purpose:
--------
When opening one of the sample surveys, the name of the survey was not
displayed entirely, and deleting the sample survey didn't do anything.
Specs:
------
Removed "target" parameter of the show sample action which was set to
"main", which clears the breadcrumbs. Since the breadcrumbs were cleared,
when opening a sample, one could not go back to the kanban view and was
stuck in the form view when deleting the sample.
Also removed the "form_view_initial_mode" which was set to "edit", which
is not required anymore since the introduction of the always edit mode.
Task-3004137
closesodoo/odoo#101976
X-original-commit: 519cabbe0202c94027e044dd1b598f1539320e27
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>