contactmodel: use new avatar received for account

If the avatar for an account is set on a device, it will send
to detected devices on new connections. The client was ignoring
the new avatar if it was not empty, now we just use the last
received avatar

Change-Id: I0b2cde9c193d46014c4d600775743312219b84df

src/libclient/contactmodel.cpp

@@ -1186,7 +1186,7 @@ ContactModelPimpl::slotProfileReceived(const QString& accountId,
             profileInfo.alias = e.split(":")[1];
 
     if (peer == linked.owner.profileInfo.uri) {
-        if (linked.owner.profileInfo.avatar.isEmpty() && !profileInfo.avatar.isEmpty()) {
+        if (!profileInfo.avatar.isEmpty()) {
             auto dest = storage::getPath() + accountId + "/profile.vcf";
             QFile oldvCard(dest);
             if (oldvCard.exists())