Thanks for the help! It works but, in my case, not in all account.invoice views, only just in one. In the other ones, the option appears in the Print menu, but in the fields_view_get() method that report menu option seems not exists in this loop:

def fields_view_get():

reports = res['toolbar']['print']

for report in reports:

# Here, the logger doesn't show the report option we want to remove

logger.error('## REPORT ## %r', report)

It works me.....! Thank you.
@api.model
def fields_view_get(self, view_id=None, view_type='form', toolbar=False, submenu=False):
context = self._context
res = super(AccountMoveLineInherit, self).fields_view_get(view_id=view_id,view_type=view_type,toolbar=toolbar,submenu=submenu)
if res.get('toolbar', False) and res.get('toolbar').get('print', False):
reports = res.get('toolbar').get('print')
for report in reports:
if context.get('journal_type') and context.get('journal_type') == 'sales':
if report.get('report_file', False) and report.get('report_file') == 'report_account_moves_line_pur_xlsx':
res['toolbar']['print'].remove(report)
if context.get('journal_type') and context.get('journal_type') == 'purchase':
if report.get('report_file', False) and report.get('report_file') == 'report_account_moves_line_sale_xlsx':
res['toolbar']['print'].remove(report)
return res

Thanks all. This is the one more example:

@api.model
def fields_view_get(self, view_id=None, view_type='form', toolbar=False, submenu=False):
res = super(accountInvoice, self).fields_view_get(view_id=view_id, view_type=view_type, toolbar=toolbar, submenu=submenu)

if res.get('toolbar', False) and res.get('toolbar').get('print', False):
reports = res.get('toolbar').get('print')

for report in reports:
if report.get('report_name', False) == 'account.report_invoice_with_payments' or report.get('report_name', False) == 'account.report_invoice':
res['toolbar']['print'] = []

return res