Remove most values uselessly specified because giving the same value as
the default one (see _DEFAULT_MANIFEST in odoo/modules/module.py)
* auto_install is Falsy by default
* author is Odoo SA by default
* summary & description are empty strings by default
* application is False by default
* test, demo, depends and data are empty lists by default
This will reduce noise/inconsistencies between manifests specifications,
simplify analysis of manifests content, ...
closesodoo/odoo#90209
Related: odoo/enterprise#26807
Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>