af_unix: Fix undefined 'other' error

Fix an issue with the sparse static analysis tool where an
"undefined 'other'" error occurs due to `__releases(&unix_sk(other)->lock)`
being placed before 'other' is in scope.

Remove the `__releases()` annotation from the `unix_wait_for_peer()`
function to eliminate the sparse error. The annotation references `other`
before it is declared, leading to a false positive error during static
analysis.

Since AF_UNIX does not use sparse annotations, this annotation is
unnecessary and does not impact functionality.

Reviewed-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Purva Yeshi <purvayeshi550@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250218141045.38947-1-purvayeshi550@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>