Now that <pkg>_INSTALL_TARGET_OPT always defaults to
'DESTDIR=$(TARGET_DIR) install', we can remove the
<pkg>_INSTALL_TARGET_OPT definition from a lot of packages.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Those are already in TARGET_CONFIGURE_ARGS. Also get rid of unused
BR2_AC_CV_FUNC_MALLOC_0_NONNULL variable.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>