Remove zaphod.alloy.ee hub from default server list: (#4903)

Remove the zaphod.alloy.ee hubs from the bootstrap and default configuration after 5 years. It has been an honor to run these servers, but it is now time for another entity to step into this role.

The zaphod servers will be taken offline in a phased manner keeping all those who have peering arrangements informed.

These would be the preferred attributes of a boostrap set of hubs:

    1. Commitment to run the hubs for a minimum of 2 years
    2. Highly available
    3. Geographically dispersed
    4. Secure and up to date
    5. Committed to ensure that peering information is kept private

cfg/rippled-example.cfg

@@ -416,7 +416,6 @@
 #
 #   The default list of entries is:
 #     - r.ripple.com 51235
-#     - zaphod.alloy.ee 51235
 #     - sahyadri.isrdc.in 51235
 #
 #   Examples:

cfg/rippled-reporting.cfg

@@ -388,7 +388,6 @@
 #
 #   The default list of entries is:
 #     - r.ripple.com 51235
-#     - zaphod.alloy.ee 51235
 #     - sahyadri.isrdc.in 51235
 #
 #   Examples:

src/ripple/overlay/impl/OverlayImpl.cpp

@@ -491,9 +491,6 @@ OverlayImpl::start()
         // Pool of servers operated by Ripple Labs Inc. - https://ripple.com
         bootstrapIps.push_back("r.ripple.com 51235");
 
-        // Pool of servers operated by Alloy Networks - https://www.alloy.ee
-        bootstrapIps.push_back("zaphod.alloy.ee 51235");
-
         // Pool of servers operated by ISRDC - https://isrdc.in
         bootstrapIps.push_back("sahyadri.isrdc.in 51235");
     }