The new minimum supported k8s version
will be 1.21. This commit cleans the pkg
files needed to build the old k8s versions.
The pkgs build successfully. Deployed on
AIO-SX and AIO-DX, the k8s services were running ok.
Story: 2009859
Task: 44498
Change-Id: Ib39e9d1522a49c5788240781c8edee2bdffbc97a
Signed-off-by: Daniel Safta <daniel.safta@windriver.com>