Use the command Delete tabs to delete tabs.

Select the element using the arrow cursor and then select the command Delete tabs. All the tabs in the entire text element are deleted.

Select the Text tool from the toolbox. Click on the text element. The flashing insertion cursor appears. You can now select the relevant section of text (see Text). Select command Delete tabs. All the tabs in the selected text section are deleted. If you have set different tabs for different paragraphs, only the tabs for the selected text section are ever deleted. If you do not select any text, the tabs for the paragraph where the insertion cursor is positioned are deleted.