Merge pull request #1565 from tnozicka/clean-gke-nodeconfig #5962

Job	Run time
Verify	4m 0s
Build Helm charts	17s
Build images	2m 51s
Build and test	4m 12s
Verify dependencies	18s
Verify vendorability	0s
Test e2e parallel	1h 8m 24s
Test e2e serial (with alpha features)	21m 57s
Test e2e parallel (with alpha features)	1h 8m 57s
Test e2e serial	28m 55s
All tests successfull	0s
Promote artifacts	0s
Failure notifications	2s
	3h 19m 53s

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