test/e2e: Remove cilium identity list test
test/e2e: Remove cilium identity list test

This test is to check if a cilium endpoint is created with required
security labels. However, the current set of unit tests are already
offering such coverage, not to mention that connectivity tests are
checking similar points.

https://github.com/cilium/cilium/blob/master/pkg/k8s/labels_test.go
Signed-off-by: Tam Mach <2524536bcff1dac29d2f6b38b02eb7c94efb5019@cilium.io>

cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium