af_vsock: Remove unused declaration vsock_release_pending()/vsock_init_tap()

Commit d021c344 ("VSOCK: Introduce VM Sockets") declared but never implemented
vsock_release_pending(). Also vsock_init_tap() never implemented since introduction
in commit 531b3748 ("VSOCK: Add vsockmon tap functions").
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20230803134507.22660-1-yuehaibing@huawei.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

include/net/af_vsock.h

@@ -201,7 +201,6 @@ static inline bool __vsock_in_connected_table(struct vsock_sock *vsk)
 	return !list_empty(&vsk->connected_table);
 }
 
-void vsock_release_pending(struct sock *pending);
 void vsock_add_pending(struct sock *listener, struct sock *pending);
 void vsock_remove_pending(struct sock *listener, struct sock *pending);
 void vsock_enqueue_accept(struct sock *listener, struct sock *connected);
@@ -225,7 +224,6 @@ struct vsock_tap {
 	struct list_head list;
 };
 
-int vsock_init_tap(void);
 int vsock_add_tap(struct vsock_tap *vt);
 int vsock_remove_tap(struct vsock_tap *vt);
 void vsock_deliver_tap(struct sk_buff *build_skb(void *opaque), void *opaque);