remove deprecated feature of passing HostConfig at API container start

Signed-off-by: Shijiang Wei <mountkin@gmail.com>

integration-cli/docker_deprecated_api_v124_unix_test.go

@@ -0,0 +1,30 @@
+// +build !windows
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/docker/docker/pkg/integration/checker"
+	"github.com/go-check/check"
+)
+
+// #19100 This is a deprecated feature test, it should be removed in Docker 1.12
+func (s *DockerNetworkSuite) TestDeprecatedDockerNetworkStartAPIWithHostconfig(c *check.C) {
+	netName := "test"
+	conName := "foo"
+	dockerCmd(c, "network", "create", netName)
+	dockerCmd(c, "create", "--name", conName, "busybox", "top")
+
+	config := map[string]interface{}{
+		"HostConfig": map[string]interface{}{
+			"NetworkMode": netName,
+		},
+	}
+	_, _, err := sockRequest("POST", formatV123StartAPIURL("/containers/"+conName+"/start"), config)
+	c.Assert(err, checker.IsNil)
+	c.Assert(waitRun(conName), checker.IsNil)
+	networks := inspectField(c, conName, "NetworkSettings.Networks")
+	c.Assert(networks, checker.Contains, netName, check.Commentf(fmt.Sprintf("Should contain '%s' network", netName)))
+	c.Assert(networks, checker.Not(checker.Contains), "bridge", check.Commentf("Should not contain 'bridge' network"))
+}