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, 3 insertions, 5 deletions

diff --git a/pkg/api/handlers/libpod/pods.go b/pkg/api/handlers/libpod/pods.go
index d522631b7..5b92358fa 100644
--- a/pkg/api/handlers/libpod/pods.go
+++ b/pkg/api/handlers/libpod/pods.go
@@ -81,7 +81,7 @@ func PodCreate(w http.ResponseWriter, r *http.Request) {
 		utils.Error(w, httpCode, errors.Wrap(err, "failed to make pod"))
 		return
 	}
-	utils.WriteResponse(w, http.StatusCreated, handlers.IDResponse{ID: pod.ID()})
+	utils.WriteResponse(w, http.StatusCreated, entities.IDResponse{ID: pod.ID()})
 }
 
 func Pods(w http.ResponseWriter, r *http.Request) {
@@ -290,9 +290,7 @@ func PodPrune(w http.ResponseWriter, r *http.Request) {
 }
 
 func PodPruneHelper(r *http.Request) ([]*entities.PodPruneReport, error) {
-	var (
-		runtime = r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
-	)
+	runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
 	responses, err := runtime.PrunePods(r.Context())
 	if err != nil {
 		return nil, err
@@ -414,7 +412,7 @@ loop: // break out of for/select infinite` loop
 			}
 
 			if len(output) > 0 {
-				var body = handlers.PodTopOKBody{}
+				body := handlers.PodTopOKBody{}
 				body.Titles = strings.Split(output[0], "\t")
 				for i := range body.Titles {
 					body.Titles[i] = strings.TrimSpace(body.Titles[i])