remove welcome message (new version)

hi y'all -

so i followed the technique suggested here:
https://premium.wpmudev.org/forums/topic/remove-welcome-message

and on the third to last line of the current header.php managed to remove the sign up button with an "if (is home()) " but how do i actually get rid of the welcome message too?

it still shows up on the logged in version of home once a member signs in.

all help appreciated!