Dear Fayzulloeva Munira ,

you have to do this by yourself...

Please go to the following link of the RG help pages:

https://help.researchgate.net/hc/en-us/articles/14293099743121-How-to-make-content-private-or-remove-it,

scroll a bit down and follow the instructions to remove the publication.

(See the section: How do I remove a publication page or full-text from my profile?)

That's it...

Good luck and

best regards

G.M.