Remove Makefile, which was getting out of date.
Remove Makefile, which was getting out of date.

yinheli/redwood-filter,vishnuvaradaraj/redwood,yinheli/redwood-filter,unixabg/redwood,unixabg/redwood,vishnuvaradaraj/redwood,andybalholm/redwood,andybalholm/redwood,yinheli/redwood-filter,vishnuvaradaraj/redwood