Revert "Use custom pifpaf" #870

Job	Run time
doc (docs)	1m 42s
check (build)	44s
doc (docs-gnocchi-web)	1m 38s
test (py39, postgresql-file-upgrade-from-4.5)	2m 45s
check (pep8)	43s
test (py39, mysql-file)	3m 25s
test (py39, mysql-file-sqlalchemy14)	3m 8s
test (py39, mysql-swift)	3m 30s
test (py39, mysql-s3)	4m 8s
test (py39, postgresql-file)	3m 2s
test (py39, postgresql-file-sqlalchemy14)	2m 50s
test (py39, postgresql-swift)	3m 20s
test (py39, postgresql-s3)	3m 51s
test (py311, postgresql-file-upgrade-from-4.5)	2m 34s
test (py311, mysql-file)	3m 8s
test (py311, mysql-file-sqlalchemy14)	3m 3s
test (py311, mysql-swift)	3m 21s
test (py311, mysql-s3)	3m 54s
test (py311, postgresql-file)	2m 57s
test (py311, postgresql-file-sqlalchemy14)	2m 41s
test (py311, postgresql-swift)	3m 9s
test (py311, postgresql-s3)	3m 22s
test (py312, mysql-ceph-upgrade-from-4.5)	2m 39s
test (py312, postgresql-file-upgrade-from-4.5)	2m 34s
test (py312, mysql-file)	3m 8s
test (py312, mysql-file-sqlalchemy14)	2m 53s
test (py312, mysql-swift)	3m 29s
test (py312, mysql-s3)	3m 48s
test (py312, postgresql-file)	2m 40s
test (py312, postgresql-file-sqlalchemy14)	2m 58s
test (py312, postgresql-swift)	3m 15s
test (py312, postgresql-s3)	3m 35s
	1h 33m 54s

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