icecat: remove build order hack

srcpkgs/icecat/template

@@ -18,7 +18,7 @@ makedepends="nss-devel libjpeg-turbo-devel icu-devel
  libevent-devel libnotify-devel libvpx-devel libXrender-devel
  startup-notification-devel dbus-glib-devel alsa-lib-devel pulseaudio-devel
  hunspell-devel libXcomposite-devel libSM-devel libXScrnSaver-devel
- libXt-devel libXdamage-devel harfbuzz-devel"
+ libXt-devel libXdamage-devel"
 depends="desktop-file-utils hicolor-icon-theme"
 
 # Make config/system_wrappers/alsa/alsalib.h and pulse/pulse.h find