Remove miRBase from ENA based imports
Remove miRBase from ENA based imports

This is no longer imported via ENA TPA's so we should remove it from the
configured databases that do that.

RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline