git-utils: deleted unused functions #3483

Job	Run time
Resolve environment (ubuntu-latest, linked)	32s
Resolve environment (ubuntu-latest, default)	36s
Resolve environment (macos-latest, default)	2m 17s
Resolve environment (macos-latest, nightly-latest)	2m 42s
Resolve environment (windows-latest, default)	3m 11s
Resolve environment (ubuntu-latest, nightly-latest)	39s
Resolve environment (windows-latest, nightly-latest)	3m 28s
Resolve environment (macos-latest, linked)	2m 13s
Resolve environment (windows-latest, linked)	3m 52s
	19m 30s

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