[SilentSoul]

Yes you can , check this
https://sampwiki.blast.hk/wiki/SetTimerEx
https://sampwiki.blast.hk/wiki/DestroyPickup

Script

pawn Код:

SetTimerEx("RemovePickup", 3000, false, "i", playerid); //add that underyour pickup ,and change 3000 to timer you want.

add this any where in your script

pawn Код:

forward RemovePickup(playerid);
public RemovePickup(playerid)
{
    DestroyPickup(your pickup name); //change that to your pickup name.
    return 1;
}