Add option to remove the host, target, build options in ./configure
Add option to remove the host, target, build options in ./configure

cee1/cerbero-mac,sdroege/cerbero,superdump/cerbero,EricssonResearch/cerbero,ford-prefect/cerbero,nirbheek/cerbero,nzjrs/cerbero,flexVDI/cerbero,jackjansen/cerbero,nzjrs/cerbero,centricular/cerbero,flexVDI/cerbero,lubosz/cerbero,davibe/cerbero,EricssonResearch/cerbero,EricssonResearch/cerbero,atsushieno/cerbero,ford-prefect/cerbero,multipath-rtp/cerbero,nzjrs/cerbero,justinjoy/cerbero,ikonst/cerbero,superdump/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,brion/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,ylatuya/cerbero,jackjansen/cerbero-2013,jackjansen/cerbero,sdroege/cerbero,OptoFidelity/cerbero,sdroege/cerbero,BigBrother-International/gst-cerbero,jackjansen/cerbero-2013,atsushieno/cerbero,brion/cerbero,centricular/cerbero,atsushieno/cerbero,nzjrs/cerbero,centricular/cerbero,flexVDI/cerbero,multipath-rtp/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,BigBrother-International/gst-cerbero,ramaxlo/cerbero,justinjoy/cerbero,ikonst/cerbero,ikonst/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,AlertMe/cerbero,nirbheek/cerbero,davibe/cerbero,justinjoy/cerbero,nirbheek/cerbero-old,EricssonResearch/cerbero,nirbheek/cerbero,nicolewu/cerbero,atsushieno/cerbero,centricular/cerbero,cee1/cerbero-mac,BigBrother-International/gst-cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,ford-prefect/cerbero,AlertMe/cerbero,nirbheek/cerbero-old,superdump/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,GStreamer/cerbero,ylatuya/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,flexVDI/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,jackjansen/cerbero-2013,jackjansen/cerbero-2013,ylatuya/cerbero,ramaxlo/cerbero,ramaxlo/cerbero,davibe/cerbero,centricular/cerbero,fluendo/cerbero,justinjoy/cerbero,superdump/cerbero,multipath-rtp/cerbero,brion/cerbero,AlertMe/cerbero,OptoFidelity/cerbero,shoreflyer/cerbero,nzjrs/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,atsushieno/cerbero,shoreflyer/cerbero,lubosz/cerbero,fluendo/cerbero,cee1/cerbero-mac,flexVDI/cerbero,OptoFidelity/cerbero,GStreamer/cerbero,GStreamer/cerbero,BigBrother-International/gst-cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,brion/cerbero,nirbheek/cerbero-old,brion/cerbero,jackjansen/cerbero,nirbheek/cerbero-old,shoreflyer/cerbero,fluendo/cerbero,multipath-rtp/cerbero,GStreamer/cerbero,AlertMe/cerbero,sdroege/cerbero,lubosz/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,ikonst/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,OptoFidelity/cerbero,nicolewu/cerbero,fluendo/cerbero,ramaxlo/cerbero,ikonst/cerbero,sdroege/cerbero,ylatuya/cerbero,AlertMe/cerbero,EricssonResearch/cerbero,ramaxlo/cerbero,nirbheek/cerbero,fluendo/cerbero,jackjansen/cerbero,multipath-rtp/cerbero,jackjansen/cerbero-2013,nicolewu/cerbero,lubosz/cerbero,cee1/cerbero-mac,shoreflyer/cerbero,ford-prefect/cerbero,davibe/cerbero,shoreflyer/cerbero,BigBrother-International/gst-cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,GStreamer/cerbero