after select wav file or csv file in "Broad cast " or "Destination Number" selector file, remove Button not displayed

steps :- 

1. Login as admin.
2. go to get addon.
3. installed voice broad casting.
4. now re-login as admin/sub-admin login.
5. go to inbound > voice broad cast.
6. click on create.
7. now select any .wav file or csv file from "Broadcast" or "Destination Number "selector option and observe.

Actual result :- after select wav file or csv file in "Broad cast " or "Destination Number" selector file, remove Button not displayed

Expected result :- after select wav file or csv file in "Broad cast " or "Destination Number" selector file, remove Button should be display. 

See screenshot for reference :-