Do not toggle Orage window state

Albeit a bit hidden, Orage does have a setting to start minimized, so
it's not necessary to toggle it after start.

dotfiles/i3/config

 exec "owncloud"
 exec "psi"
 exec "orage"
-exec "orage -t"
 exec "dropbox start"
 exec "hexchat --minimize=2"
 exec "nm-applet"