make.bash: remove old bash version of gotest on Windows
make.bash: remove old bash version of gotest on Windows

The file is called gotest.exe now.

R=golang-dev, r
CC=golang-dev
http://codereview.appspot.com/4444090

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