Clean raw data metrics that do not receive measures #697

Job	Run time
check (build)	40s
doc (docs)	1m 40s
test (py39, postgresql-file-upgrade-from-4.4)	2m 23s
doc (docs-gnocchi-web)	1m 44s
test (py39, mysql-file)	2m 41s
check (pep8)	44s
test (py39, mysql-file-sqlalchemy14)	2m 39s
test (py39, mysql-swift)	2m 39s
test (py39, mysql-s3)	2m 43s
test (py39, postgresql-file)	2m 38s
test (py39, postgresql-file-sqlalchemy14)	2m 38s
test (py39, postgresql-swift)	2m 36s
test (py39, postgresql-s3)	1m 45s
test (py311, postgresql-file-upgrade-from-4.4)	2m 22s
test (py311, mysql-file)	2m 36s
test (py311, mysql-file-sqlalchemy14)	2m 33s
test (py311, mysql-swift)	2m 48s
test (py311, mysql-s3)	2m 50s
test (py311, postgresql-file)	2m 31s
test (py311, postgresql-file-sqlalchemy14)	2m 37s
test (py311, postgresql-swift)	2m 40s
test (py311, postgresql-s3)	2m 42s
	51m 9s

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