There is no option to 'Delete' containers in bulk, it can only be done manually by Administrators. What can be done is to 'Dispose' containers in bulk using the 'Barcode Search' feature as a workaround.
Workaround:
1.Log into Signals Inventory
2.Click on 'Barcode Search'
3.In the 'Barcode Search' page click on 'Search':
3.1.In the 'Path' filter select the location
3.2.Click 'Select All'
3.3.Click 'Add Selected'
4.Click the check box to 'Select All' containers
5.Click on 'Dispose'
6.In the confirmation dialog click 'Dispose'