CL: drop pinning/overriding of UNINATIVE_VERSION

CL: drop pinning/overriding of UNINATIVE_VERSION

Version 4.0 of Uninative tarball had a bug in patchelf that would break
CI builds, so we had to pin the version down to 3.9 first, then explicitly
update to 4.1 that would be used in YP 4.0.12

Now YP 4.0.13 comes with Uninative 4.3 tarball which resolves this issue,
so we no longer need to pin down or explicitly override Uninative vars.

This reverts commit 18f817e16daefe3bd7479cd66a9103974ff2a9be.
This reverts commit 45b1b63c35c52b8283e1893dfa099607baa0cdcc.

Bug-AGL: SPEC-4875
Change-Id: Iec5ffa77c0e9778f40bedd9092c25bcc593ac39c
Signed-off-by: Denys Dmytriyenko <denys@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/29178
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>