Small improvement

app/src/main/java/eu/faircode/email/ConnectionHelper.java

@@ -344,6 +344,7 @@ public class ConnectionHelper {
         Network[] networks = cm.getAllNetworks();
         if (standalone_vpn && networks != null && networks.length == 1) {
             // Internet not checked/validated
+            // Used for USB/Ethernet internet connection
             boolean metered = cm.isActiveNetworkMetered();
             Log.i("isMetered: active VPN metered=" + metered);
             return metered;
@@ -390,7 +391,6 @@ public class ConnectionHelper {
                 continue;
             }
 
-            if (caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN)) {
             underlying = true;
             Log.i("isMetered: underlying is connected");
 
@@ -399,7 +399,6 @@ public class ConnectionHelper {
                 return false;
             }
         }
-        }
 
         if (!underlying) {
             Log.i("isMetered: no underlying network");