Clean raw data metrics that do not receive measures #689

Job	Run time
check (build)	41s
doc (docs)	1m 36s
check (pep8)	43s
doc (docs-gnocchi-web)	1m 34s
test (py39, postgresql-file-upgrade-from-4.4)	2m 26s
test (py39, mysql-file)	2m 40s
test (py39, mysql-file-sqlalchemy14)	2m 38s
test (py39, mysql-swift)	2m 38s
test (py39, mysql-s3)	2m 39s
test (py39, postgresql-file)	2m 34s
test (py39, postgresql-file-sqlalchemy14)	2m 36s
test (py39, postgresql-swift)	2m 4s
test (py39, postgresql-s3)	1m 59s
test (py311, postgresql-file-upgrade-from-4.4)	2m 22s
test (py311, mysql-file)	2m 41s
test (py311, mysql-file-sqlalchemy14)	2m 31s
test (py311, mysql-swift)	2m 41s
test (py311, mysql-s3)	2m 41s
test (py311, postgresql-file)	2m 41s
test (py311, postgresql-file-sqlalchemy14)	2m 23s
test (py311, postgresql-swift)	2m 39s
test (py311, postgresql-s3)	2m 39s
	50m 6s

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