sync_master recv_block only called on valid blocks, so don't disconne…

…ct if unexpected

plugins/net_plugin/net_plugin.cpp

@@ -1583,9 +1583,8 @@ namespace eosio {
       fc_dlog(logger, "got block ${bn} from ${p}",("bn",blk_num)("p",c->peer_name()));
       if (state == lib_catchup) {
          if (blk_num != sync_next_expected_num) {
-            fc_wlog( logger, "expected block ${ne} but got ${bn}, closing connection: ${p}",
+            fc_wlog( logger, "expected block ${ne} but got ${bn}, from connection: ${p}",
                      ("ne",sync_next_expected_num)("bn",blk_num)("p",c->peer_name()) );
-            my_impl->close(c);
             return;
          }
          sync_next_expected_num = blk_num + 1;