Remove path after clicking selection from Path

[PixLab]

Near your layers dialog / stack there is a tab called "Path"
Without changing the tool path, click on "New" in the path tab/dialog,

   

from this dialog on the oposite side of "New" you got a cross > delete

more about path dialog
https://docs.gimp.org/2.10/en/gimp-path-dialog.html
path tool
https://docs.gimp.org/2.10/en/gimp-tool-path.html
https://docs.gimp.org/2.10/en/gimp-using-paths.html