Drop unnecessary X11 and alsa requires from spice-server.pc
Drop unnecessary X11 and alsa requires from spice-server.pc

fgouget/spice,freedesktop-unofficial-mirror/spice__spice,elmarco/spice,elmarco/spice,ya-mouse/spice,alon/spice-server,elmarco/spice,Fantu/spice,mathslinux/spice,Fantu/spice,freedesktop-unofficial-mirror/spice__spice,SPICE/spice,freedesktop-unofficial-mirror/spice__spice,fgouget/spice,dezelin/spice,dezelin/spice,mathslinux/spice,mathslinux/spice,mathslinux/spice,Fantu/spice,elmarco/spice,Fantu/spice,alon/spice-server,fgouget/spice,dezelin/spice,freedesktop-unofficial-mirror/spice__spice,ya-mouse/spice,elmarco/spice,dezelin/spice,fgouget/spice,freedesktop-unofficial-mirror/spice__spice,mathslinux/spice,ya-mouse/spice,SPICE/spice,alon/spice-server,SPICE/spice,alon/spice-server,dezelin/spice,alon/spice-server