sandbox: merge address and protocol to one url

Signed-off-by: Abel Feng <fshb1988@gmail.com>

core/sandbox/controller.go

@@ -118,7 +118,6 @@ type ControllerInstance struct {
 	Pid       uint32
 	CreatedAt time.Time
 	Address   string
-	Protocol  string
 	Version   uint32
 	Labels    map[string]string
 }
@@ -137,6 +136,5 @@ type ControllerStatus struct {
 	ExitedAt  time.Time
 	Extra     typeurl.Any
 	Address   string
-	Protocol  string
 	Version   uint32
 }

core/sandbox/proxy/controller.go

@@ -74,7 +74,6 @@ func (s *remoteSandboxController) Start(ctx context.Context, sandboxID string) (
 		CreatedAt: resp.GetCreatedAt().AsTime(),
 		Labels:    resp.GetLabels(),
 		Address:   resp.GetAddress(),
-		Protocol:  resp.GetProtocol(),
 		Version:   resp.GetVersion(),
 	}, nil
 }
@@ -145,7 +144,6 @@ func (s *remoteSandboxController) Status(ctx context.Context, sandboxID string,
 		ExitedAt:  resp.GetExitedAt().AsTime(),
 		Extra:     resp.GetExtra(),
 		Address:   resp.GetAddress(),
-		Protocol:  resp.GetProtocol(),
 		Version:   resp.GetVersion(),
 	}, nil
 }