Remove the deprecation of Flow#recoverWith

[He-Pin]

As working on #31639 and #31669, I found that the recoverWith is deprecated. when digging further, I think it's a mistaken to deprecate it and we should remove the deprecation.

And in issue #24992, @patriknw pointed out that:

By the way, I suggest removing the deprecation of recoverWith since I think in most of the time the attempt count is not interesting, especially since there is no reset of the count or notion of failures per time unit.

As for the change, I think the only change need to do is just updated the java/scala doc about if you prefer to limit the maximum retring times, use RecoverWithRetries.