server: remove redundant bypasswait file

Bypass requests are delivered via the event stream.
The bypasswait file was unused.

cmd/olliesrv/internal/fs/spec.go

@@ -483,31 +483,6 @@ func buildSessionChildren(
 				return s.ResolveBypass(id, approved)
 			}),
 		),
-		virtfs.FileNode("bypasswait", 0444,
-			virtfs.Doc("Blocks until a bypass request arrives."),
-			virtfs.Read(func() ([]byte, error) {
-				req := s.BypassPending()
-				if req == nil {
-					return nil, nil
-				}
-				data, err := json.Marshal(req)
-				if err != nil {
-					return nil, err
-				}
-				return append(data, '\n'), nil
-			}),
-			virtfs.BlockOnce(func() ([]byte, string, error) {
-				req := s.BypassPending()
-				if req == nil {
-					return nil, "", nil
-				}
-				data, err := json.Marshal(req)
-				if err != nil {
-					return nil, "", err
-				}
-				return append(data, '\n'), req.ID, nil
-			}, s.BypassSignal),
-		),
 		virtfs.FileNode("stats", 0444,
 			virtfs.Read(func() ([]byte, error) {
 				a, err := metrics.AggregateSession(s.ID)

cmd/olliesrv/internal/session/session.go

@@ -280,17 +280,6 @@ func (s *Session) BypassPending() *protocol.BypassRequest {
 	return s.bypassPending
 }
 
-// BypassSignal returns a channel closed when the bypass state changes.
-func (s *Session) BypassSignal() <-chan struct{} {
-	s.bypassMu.Lock()
-	if s.bypassSignalCh == nil {
-		s.bypassSignalCh = make(chan struct{})
-	}
-	ch := s.bypassSignalCh
-	s.bypassMu.Unlock()
-	return ch
-}
-
 // ResolveBypass resolves a pending bypass request and clears it.
 func (s *Session) ResolveBypass(id string, approved bool) error {
 	s.bypassMu.Lock()