Merge pull request #54 from RealDeuce/unused-header

Remove unused header

src/dev_usb_freebsd.c

@@ -25,7 +25,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <fcntl.h>
 #include <glob.h>
 #include <inttypes.h>
-#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>