Swagger refactor/cleanup

* Remove duplicate or unused types and constants
* Move all documetation-only models and responses into swagger package
* Remove all unecessary names, go-swagger will determine names from
  struct declarations
* Use Libpod suffix to differentiate between compat and libpod models
  and responses. Taken from swagger:operation declarations.
* Models and responses that start with lowercase are for swagger use
  only while uppercase are used "as is" in the code and swagger comments
* Used gofumpt on new code

```release-note

```

Signed-off-by: Jhon Honce <jhonce@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/pkg/api/server/register_events.go b/pkg/api/server/register_events.go
index 10a7b76fc..76f9ec619 100644
--- a/pkg/api/server/register_events.go
+++ b/pkg/api/server/register_events.go
@@ -33,7 +33,7 @@ func (s *APIServer) registerEventsHandlers(r *mux.Router) error {
 	//   200:
 	//     description: returns a string of json data describing an event
 	//   500:
-	//     "$ref": "#/responses/InternalError"
+	//     "$ref": "#/responses/internalError"
 	r.Handle(VersionedPath("/events"), s.APIHandler(compat.GetEvents)).Methods(http.MethodGet)
 	// Added non version path to URI to support docker non versioned paths
 	r.Handle("/events", s.APIHandler(compat.GetEvents)).Methods(http.MethodGet)
@@ -67,7 +67,7 @@ func (s *APIServer) registerEventsHandlers(r *mux.Router) error {
 	//   200:
 	//     description: returns a string of json data describing an event
 	//   500:
-	//     "$ref": "#/responses/InternalError"
+	//     "$ref": "#/responses/internalError"
 	r.Handle(VersionedPath("/libpod/events"), s.APIHandler(compat.GetEvents)).Methods(http.MethodGet)
 	return nil
 }