Clean raw data metrics that do not receive measures #694

Job	Run time
doc (docs)	1m 41s
check (build)	52s
doc (docs-gnocchi-web)	1m 44s
test (py39, postgresql-file-upgrade-from-4.4)	1m 41s
check (pep8)	40s
test (py39, mysql-file)	2m 37s
test (py39, mysql-file-sqlalchemy14)	2m 37s
test (py39, mysql-swift)	2m 38s
test (py39, mysql-s3)	2m 38s
test (py39, postgresql-file)	2m 44s
test (py39, postgresql-file-sqlalchemy14)	2m 39s
test (py39, postgresql-swift)	1m 36s
test (py39, postgresql-s3)	2m 38s
test (py311, postgresql-file-upgrade-from-4.4)	2m 22s
test (py311, mysql-file)	2m 40s
test (py311, mysql-file-sqlalchemy14)	2m 37s
test (py311, mysql-swift)	2m 39s
test (py311, mysql-s3)	2m 39s
test (py311, postgresql-file)	2m 39s
test (py311, postgresql-file-sqlalchemy14)	2m 38s
test (py311, postgresql-swift)	2m 39s
test (py311, postgresql-s3)	2m 39s
	50m 17s

Provide feedback