[IMP] {microsoft, fetchmail}_outlook: do not reset the email config

Purpose
=======
Do not reset the email configuration when unchecking "is Gmail".

Task-2751996

Part-of: odoo/odoo#87498

addons/fetchmail_gmail/models/fetchmail_server.py

@@ -23,8 +23,6 @@ class FetchmailServer(models.Model):
             self.is_ssl = True
             self.port = 993
         else:
-            self.server_type = 'pop'
-            self.is_ssl = False
             self.google_gmail_authorization_code = False
             self.google_gmail_refresh_token = False
             self.google_gmail_access_token = False

addons/google_gmail/models/ir_mail_server.py

@@ -27,7 +27,6 @@ class IrMailServer(models.Model):
             self.smtp_encryption = 'starttls'
             self.smtp_port = 587
         else:
-            self.smtp_encryption = 'none'
             self.google_gmail_authorization_code = False
             self.google_gmail_refresh_token = False
             self.google_gmail_access_token = False