glibc-testsuite: Fix build failures when directly running recipe
If you try and run the glibc-testsuite's build task, you see failures
as do_populate_sysroot can't work. We don't have a do_install, get
rid of do_populate_sysroot as well.
The recipe is not included in world builds by default which is why
we don't see the issue more widely.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
f7de32dfcc2e6b1872fbd5ea61dcba944d5553a8)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>