send-email docs: Remove mention of discontinued gmail feature

Support for "less secure apps" ended May 30, 2022.

This effectively reverts 155067a (git-send-email.txt: mention less secure
app access with Gmail, 2021-01-08).

Signed-off-by: Jouke Witteveen <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: joukewitteveen

Documentation/git-send-email.txt

@@ -484,14 +484,10 @@ edit ~/.gitconfig to specify your account settings:
 	smtpServerPort = 587
 ----
 
-If you have multi-factor authentication set up on your Gmail account, you will
-need to generate an app-specific password for use with 'git send-email'. Visit
+If you have multi-factor authentication set up on your Gmail account, you can
+generate an app-specific password for use with 'git send-email'. Visit
 https://security.google.com/settings/security/apppasswords to create it.
 
-If you do not have multi-factor authentication set up on your Gmail account,
-you will need to allow less secure app access. Visit
-https://myaccount.google.com/lesssecureapps to enable it.
-
 Once your commits are ready to be sent to the mailing list, run the
 following commands: