deletes one or multiple request file records from RDADB for given data file names.
| dsrqst | -(DL|Delete) [Mode Options] |
|   | -(RI|RequestIndex) RequestIndices |
|   | -(FN|WebFile) RequestFileNames |
|   | [-(DB|Debug) DebugModeInfo] |
Mode options that can be specified for this action include:
| -(MD|MyDataset) | sets information into RDADB no matter the specialist who runs 'dsrqst' owns the dataset or not |