Cleanup ignat99 feat

New PR from https://github.com/Ignat99/OpenBazaar/pull/1 directly into OpenBazaar:develop.
> @@ -769,8 +778,7 @@ def on_negotiate_pubkey(self, ident_pubkey):
>  
>      def on_response_pubkey(self, response):
>          """Deprecated. This is a DarkMarket holdover.
> -           Ran for verify signature if someone send to you pubKey.
> -
> +           Run for verify signature if someone send to you pubKey.

        self.transport.add_callbacks([
            ('query_myorders', self.on_query_myorders),
            ('peer', self.on_peer),
            ('query_page', self.on_query_page),
            ('query_listings', self.on_query_listings),
            ('negotiate_pubkey', self.on_negotiate_pubkey),
            ('proto_response_pubkey', self.on_response_pubkey)
        ])
OpenBazaar/node/protocol.py 

def proto_response_pubkey(nickname, pubkey, signature):
    data = {
        'type': "proto_response_pubkey",
        'nickname': nickname,
        'pubkey': pubkey.encode("hex"),
        'signature': signature.encode("hex")
    }
    return data

OpenBazaar/node/transport.py

        # Send array of nickname, pubkey, signature to transport layer
        self.send(proto_response_pubkey(nickname, pubkey, signature))