test(kubernetes-nodes): drop parity script from make test

The cross-chart parity script was removed (the parent no longer renders
pools to diff against); the render snapshot under helm unittest is the
drift guard now and already runs in CI.

Signed-off-by: Ivan Okhotnikov <xorokhotnikov@gmail.com>

packages/apps/kubernetes-nodes/Makefile

@@ -4,7 +4,6 @@ include ../../../hack/package.mk
 
 test:
 	helm unittest .
-	bash tests/render-parity.sh
 
 generate:
 	cozyvalues-gen -m 'kubernetesnodes' -v values.yaml -s values.schema.json -r README.md -g ../../../api/apps/v1alpha1/kubernetesnodes/types.go