Show ssh command directly in template instead of i18n translation (#19335)

* add missing space for generate ssh token command

Signed-off-by: Junjie Yuan <yuan@junjie.pro>

* Do not use i18n for ssh command

* Remove unnecessary settings.ssh_token_code

* Revert locale_zh-CN.ini

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

options/locale/locale_en-US.ini

@@ -664,7 +664,6 @@ ssh_invalid_token_signature = The provided SSH key, signature or token do not ma
 ssh_token_required = You must provide a signature for the below token
 ssh_token = Token
 ssh_token_help = You can generate a signature using:
-ssh_token_code = echo -n "%s" | ssh-keygen -Y sign -n gitea -f /path_to_your_pubkey
 ssh_token_signature = Armored SSH signature
 key_signature_ssh_placeholder = Begins with '-----BEGIN SSH SIGNATURE-----'
 verify_ssh_key_success = SSH key '%s' has been verified.