DO NOT MERGE : fix useless import

This was added to avoid a merge conflict at a sensitive time.
It can (and should) go.

Test: no code change
Change-Id: I11d73e2d988ae61a168aa0f1cc7c2c506f509d30

core/java/android/net/NetworkCapabilities.java

@@ -21,7 +21,6 @@ import android.net.ConnectivityManager.NetworkCallback;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.ArraySet;
-import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.BitUtils;