Remove the generation of the testglibc script which could be used to run
the glibc test suite with a remote target. The same functionality can
now be achieved with the 'do_check' task of glibc-testsuite or with
oe-selftest (for automation of execution against qemu-user/qemu-system
targets).
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>