Here, you can access the comprehensive list of all existing segments currently existing for your project.
For first-time users, the segment list will be empty. Use the Create Segment functionality to build or create a new segment.
To open the Segment List , In the Analytics grid, click Segmentation.
...
Select the required segment from the list.
Click on the button. The Delete Segment pop-up window asks the for confirmation of the segment deletion.
Click Delete.
...
Please be careful while deleting a segment. It is a permanent action and can not be undone.
However, If if you are have accidentally deleting deleted a segment, you can recreate the same segment at any time.
...