Comment ip package in a single place

Fixes the below linting error:
```
  From Golint:
  > Package ip has package comment defined in multiple places:
  >   duplicate_address_detection.go
  >   generic_multicast_protocol.go
```

PiperOrigin-RevId: 371430486
This commit is contained in:
Ghanan Gowripalan
2021-04-30 17:06:26 -07:00
committed by gVisor bot
parent ea89cd38a1
commit eb2b39f702
@@ -12,7 +12,6 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// Package ip holds IPv4/IPv6 common utilities.
package ip
import (