How to delete the slider widget on my form?

i cannot delete the image slider found below it

 

usually all i do is click on the widget and then click on the X to delete it.......but no options for deleting it is showing us

Please try selecting the widget by clicking on the green colored area as shown in the image below so that you can delete the widget.

Alternatively, you may right-click on any other field on the form to select Manage Multiple fields options so that you can select the widget from there and delete it. Please see the screencast below:

Hope this information helps!