Hi Igor_2008 and I too welcome to our community
As Peter indicated, it's a Browse Sequence. But to get rid of
it, you have to edit the Window definition of your project.
I'm not sure what version of RoboHelp you are using, so I'll
provide detail for the last two.
For RoboHelp 7, click View > Pods > Project Set-up and
expand the Windows pseudo folder
For RoboHelp 6, click View > Pane > Project and expand
the Windows pseudo folder
Double click the window for your project and DE-select the
"Browse Sequences" check box.
Cheers... Rick