VOL-3121 - Separated ports from devices.

Similar to flows/groups/meters/logical ports.
Also added ListDevicePorts and GetDevicePort to the adapter API.
Also removed unused `// +build integration` tests.

Change-Id: I586adb9f46a249c9430d4205ef5db2d105dbbe06
diff --git a/rw_core/core/device/remote/adapter_proxy_test.go b/rw_core/core/device/remote/adapter_proxy_test.go
index 5ab0127..46de80f 100755
--- a/rw_core/core/device/remote/adapter_proxy_test.go
+++ b/rw_core/core/device/remote/adapter_proxy_test.go
@@ -18,6 +18,10 @@
 import (
 	"context"
 	"crypto/rand"
+	"strings"
+	"testing"
+	"time"
+
 	"github.com/golang/protobuf/ptypes"
 	any2 "github.com/golang/protobuf/ptypes/any"
 	cm "github.com/opencord/voltha-go/rw_core/mocks"
@@ -31,9 +35,6 @@
 	"github.com/stretchr/testify/assert"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
-	"strings"
-	"testing"
-	"time"
 )
 
 const (