[Aesma Deva]

Try this: Go to Admin CP -> Styles & Templates -> Style Manager -> Edit Templates (From the drop down menu). Then double click on Forum home templates from the menu on the left. Double click on forumhome_forumbit_level1_nopost that will appear in the same menu and in the text field you'll see, in the 3rd line from the bottom you should see $childforumbits. Delete that, then click Save. Double click on forumhome_forumbit_level1_post and you'll see the same, in the 3rd line from the bottom. Delete that too, click Save again, and you should be done.
I hope this is what you wanted.