Adjust current implementation to accomodate content-type and test to check it

internal/client/route_remove.go

@@ -6,5 +6,5 @@ import (
 
 func RemoveRoute(host, id string) error {
 	url := host + "/routes/" + id
-	return http.Delete(url, nil, nil)
+	return http.Delete(url, "application/json", nil, nil)
 }

internal/client/route_remove_test.go

@@ -14,7 +14,7 @@ func TestRemoveRouteExistent(t *testing.T) {
 	)
 
 	defer gock.Off()
-	gock.New(host).Delete("/routes/" + routeID).Reply(http.StatusNoContent)
+	gock.New(host).Delete("/routes/" + routeID).MatchType("json").Reply(http.StatusNoContent)
 
 	err := RemoveRoute(host, routeID)
 	if err != nil {