Revert "SUNRPC: attempt AF_LOCAL connect on setup"

mainline inclusion
from mainline-v5.18-rc6
commit a3d0562d4dc039bca39445e1cddde7951662e17d
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I57MRF


CVE: NA

-------------------------------------------

This reverts commit 7073ea87.

We must not try to connect the socket while the transport is under
construction, because the mechanisms to safely tear it down are not in
place. As the code stands, we end up leaking the sockets on a connection
error.

Reported-by: wanghai (M) <wanghai38@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Reviewed-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Yongqiang Liu <liuyongqiang13@huawei.com>