refactor: delete temporary CODEOWNERS file #3144

Job	Run time
list	28s
workflow (build-unit-tests)	2m 33s
workflow (build-cli)	1m 44s
workflow (devkit-core-tests)	1m 25s
workflow (devkit-core-tests-rerun)	1m 27s
workflow (modules-builder-tests)	1m 56s
	9m 33s

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