Revert "Merge pull request #258 from tsuyoshicho/renovate/codecov-cod… #880

Job	Run time
vim v8.2.0020/windows-latest test	2m 6s
vim v8.2.0020/ubuntu-latest test	54s
vim v9.0.0107/windows-latest test	2m 4s
vim v9.0.0107/ubuntu-latest test	1m 27s
vim head/windows-latest test	2m 11s
vim head/ubuntu-latest test	56s
vim v8.2.0020/macos-latest test	3m 31s
vim v9.0.0107/macos-latest test	2m 56s
vim head/macos-latest test	3m 29s
macvim head/macos-latest test	2m 14s
	21m 48s

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