basically what happen is that I did this tomb in Egypt that had the eyes thing now I don’t really care for it but I do care about the relics well during the time they got back and die for some reason I lost those relics and others so I’m just curious is it safe to delete a tomb and put the same one that new in that place or will it break the game

It's safe to bulldoze tombs and that shouldn't affect your collected rellics. You can replace it with the same tomb saved in the library from brand new untouched world.

About this replacement I'm worried about the relation between it and the adventure board.

Edit: I think there were already build in system in the game that resets the tombs, but not sure if it resets everything in it's untouched state.

It is safe to replace the tomb. I believe the left and right eye should be found in the debug catalog if you'd rather not go through the tomb again to get it (I know the axe from China is). As for the tomb and the adventure board, replacing the tomb will not make any quest associated with it available again, so if you need to get a key that's only available from a quest, you'll not be able to open the door without cheating. Fortunately the Abu Simbel is one of the lots that you don't need a key to get into.

Unfortunately EA didn't put in an easy way to reset the tombs or the adventures quests. They assumed you would just play the tomb once per save and not want to try the tombs with a different character. If you wanted to have a different sim go through the tombs, the easiest way is to delete the files for that area in the save folder and let the game just make a new version of it when you travel to the area. If you wanted the same sim to replay the tombs, you would have to do that and use a mod to remove the adventure quests from that sim's list of completed opportunities (I think Nraas' Master Controller can do that but they are having issues with their site if I recall correctly).