Merge "libclat: Remove redundant "using android::net::.*"" am: 83acb39c6c am: 8d57bd2e36

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1989915

Change-Id: I8d35801c3bede73d605f21d8b3157b975e2e7ec1