How do I remove these world objects?

[Zin]

I can't remove these lights how do I remove them with world object they have no col I can't remove them.

http://d21.imgup.net/mta-screen340c.png

[Krox]

Try to grab them with a other Map editor like SAMP Map construction or Med Map editor.

[Hale]

http://forum.sa-mp.com/showthread.php?t=282801

[Asteria]

To remove world objects you need to use the World Object remover function which is shown below, it's in the bottom left of your screen when you're in the editor.