Hi Vishakha,
Prompts cannot be removed in webi, for removing the prompts, open the universe upon wich u created the webi report, select prompt as "Optional".
Prompts can be optional or mandatory. If you do not supply a value for an optional prompt, the prompt
is ignored. You must supply values for all mandatory prompts before you can filter the data by running
the prompts.
Thanks
Vizit Yadav