Don't build netbsd because docker won't compile

The docker package gives the following error when build on netbsd:

'go' returned error: Wait error: exit status 2: # github.com/online-net/c14-cli/vendor/github.com/docker/docker/pkg/term
../../vendor/github.com/docker/docker/pkg/term/tc_other.go:12: undefined: Termios
../../vendor/github.com/docker/docker/pkg/term/tc_other.go:17: undefined: Termios

.goxc.json

@@ -14,7 +14,7 @@
 		"rmbin",
 		"publish-github"
 	],
-	"BuildConstraints": "darwin linux windows freebsd netbsd",
+	"BuildConstraints": "darwin linux windows freebsd",
 	"ResourcesExclude": "*.go .goxc-temp",
 	"MainDirsExclude": "vendor,Godeps,testdata",
 	"PackageVersion": "0.0.1",

Makefile

@@ -110,9 +110,6 @@ goxc:
 	-mv dist/latest/linux_386/c14          dist/latest/c14-Linux-i386
 	-mv dist/latest/linux_amd64/c14        dist/latest/c14-Linux-x86_64
 	-mv dist/latest/linux_arm/c14          dist/latest/c14-Linux-arm
-	-mv dist/latest/netbsd_386/c14         dist/latest/c14-Netbsd-i386
-	-mv dist/latest/netbsd_amd64/c14       dist/latest/c14-Netbsd-x86_64
-	-mv dist/latest/netbsd_arm/c14         dist/latest/c14-Netbsd-arm
 	-mv dist/latest/windows_386/c14.exe    dist/latest/c14-Windows-i386.exe
 	-mv dist/latest/windows_amd64/c14.exe  dist/latest/c14-Windows-x86_64.exe