misc/cgo/testcdefs: rm correct file in test.bash
misc/cgo/testcdefs: rm correct file in test.bash

R=golang-dev, rsc
CC=golang-dev
https://codereview.appspot.com/39780043

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang