Is Layered architecture useful without any design pattern like DI or Repository?

Im little bit of confusing on this matter , Is layered architecture is useful without any design pattern like DI or Repository , im not talking about direct DI and Repository patterns they are just for mentioning , as per my knowledge we use layered architecture mainly for remove dependency of the layers of each others , but without using above mentioned design patterns we just code referring those layers as a example if we have Logic layer and Database layer without any design pattern we heavily depend on each layers , can anyone explain on this thanks, and sorry for my bad English.