ssh-copy-id: Remove default key example

pages/common/ssh-copy-id.md

@@ -6,10 +6,6 @@
 
 `ssh-copy-id {{username@remote_host}}`
 
-- Copy your default key to the remote machine:
-
-`ssh-copy-id -i {{username@remote_host}}`
-
 - Copy the given public key to the remote:
 
 `ssh-copy-id -i {{path/to/certificate}} {{username}}@{{remote_host}}`