[zsh] drop showing message on startup
[zsh] drop showing message on startup

It was originally added in becase the shell was slow to start up, not
it is not. So don't think there is a need for this anymore.

Plus it is starting to cause issues when I use zsh -ic in a lot of
scripts to just get the output.

meain/dotfiles,meain/dotfiles,meain/dotfiles,meain/dotfiles,meain/dotfiles,meain/dotfiles