Revert "webapp0: Switch to cassandra storage"
Revert "webapp0: Switch to cassandra storage"

This reverts commit fe47dfae6a4261470f8fc4378b0c71940da041fa.

SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site