lists/printserver: remove everything except USB and p910nd

lists/printserver.lua.m4

 include(utils.m4)dnl Include utility macros
 _FEATURE_GUARD_
 
--- On Turris 1.x there is not enough space to install some of following packages
--- so we are just skipping them.
-
--- Tools
-if not model:match("^[Tt]urris$") then
-	Install("cups", "cups-client", { priority = 40 })
-	Install("openprinting-cups-filters", "gutenprint-cups", "ghostscript", "ghostscript-fonts-std", "ghostscript-gnu-gs-fonts-other", { priority = 40 })
-	Install("hplip", { priority = 40 })
-end
-
 -- Kernel
 Install("kmod-usb2", "kmod-usb-printer", { priority = 40 })
 
 -- Luci
 Install("luci-app-p910nd", { priority = 40 })
-if not model:match("^[Tt]urris$") then
-	Install("luci-app-cups", { priority = 40 })
-end
 _LUCI_I18N_(p910nd)
 
 _END_FEATURE_GUARD_