Depends what they are you can open the favorites folder and delete the links one by one,but if they have been put there by spyware then they will keep reappearing so best to do a spyware scan with adaware it may remove them for you.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
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