Clean raw data metrics that do not receive measures #695

Job	Run time
doc (docs)	1m 44s
doc (docs-gnocchi-web)	1m 38s
check (build)	51s
check (pep8)	47s
test (py39, postgresql-file-upgrade-from-4.4)	1m 47s
test (py39, mysql-file)	2m 41s
test (py39, mysql-file-sqlalchemy14)	2m 44s
test (py39, mysql-swift)	2m 44s
test (py39, mysql-s3)	2m 43s
test (py39, postgresql-file)	2m 45s
test (py39, postgresql-file-sqlalchemy14)	2m 43s
test (py39, postgresql-swift)	1m 43s
test (py39, postgresql-s3)	2m 42s
test (py311, postgresql-file-upgrade-from-4.4)	2m 26s
test (py311, mysql-file)	2m 43s
test (py311, mysql-file-sqlalchemy14)	2m 43s
test (py311, mysql-swift)	2m 45s
test (py311, mysql-s3)	2m 43s
test (py311, postgresql-file)	2m 44s
test (py311, postgresql-file-sqlalchemy14)	2m 44s
test (py311, postgresql-swift)	2m 43s
test (py311, postgresql-s3)	2m 43s
	51m 46s

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