[qa] Don't manually sync blocks in p2p-compactblocks
[qa] Don't manually sync blocks in p2p-compactblocks

The network is not segregated by segregated witness, so no need to
manually sync it.

bitcoinxt/bitcoinxt,dagurval/bitcoinxt,dagurval/bitcoinxt,bitcoinxt/bitcoinxt,bitcoinxt/bitcoinxt,dagurval/bitcoinxt,bitcoinxt/bitcoinxt,bitcoinxt/bitcoinxt,dagurval/bitcoinxt,dagurval/bitcoinxt,bitcoinxt/bitcoinxt,dagurval/bitcoinxt