cros_workon: merge rm/ln commands

There's no need to execute `rm -f` directly when `ln -f` will unlink any
existing files for us.  One less command to exec.

TEST=`./cros_workon --board x86-alex start metrics` still works
TEST=`./cros_workon --board x86-alex stop metrics` still works

Change-Id: I784d7a215d975a11a8a4a7b5424f4e7f150bf3df
Reviewed-by: Mike Frysinger <>
Tested-by: Mike Frysinger <>
Commit-Ready: Mike Frysinger <>
1 file changed