Description of problem:

Deleting virt-who configuration shows following message on Satellite WebUI "Successfully deleted #<ForemanVirtWhoConfigure::Config:0x000055efc9df6498>" where the latter part "#<ForemanVirtWhoConfigure::Config:0x000055efc9df6498>" should be trimmed from the message.

Version-Release number of selected component (if applicable): satellite-6.13.0-4.el8sat.noarch

How reproducible: Always

Steps to Reproduce:

1. Ensure that there is a virt-who configuration already created.

2. Navigate to Satellite WebUI -> Infrastructure -> Virt-who Configurations and delete the existing virt-who configuration.

3. The virt-who configuration gets successfully deleted as expected.

Actual results: Below message is shown on the screen after virt-who configuration is deleted.

Successfully deleted #<ForemanVirtWhoConfigure::Config:0x000055efc9df6498>.

Expected results: #<ForemanVirtWhoConfigure::Config:0x000055efc9df6498>. should not be displayed on screen and the message should only say 'Successfully deleted'.

Additional info: This behavior is observed in Satellite 6.12 also.