remove obselete validation (#1013) #1067

Job	Run time
crossbrowser_and_umd_unit_tests	6h 0m 13s
lint	1m 17s
unit_tests (16)	1m 56s
unit_tests (18)	1m 41s
unit_tests (20)	1m 45s
unit_tests (22)	1m 38s
integration_tests / test	5s
fullstack_production_suite / test	6s
lint_markdown_files / lint	1m 0s
Coveralls coverage	3s
	6h 9m 44s

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