scripts: rm bip70.py

this script has been broken for 5+ years

electrum/scripts/bip70.py

@@ -1,37 +0,0 @@
-#!/usr/bin/env python3
-# create a BIP70 payment request signed with a certificate
-# FIXME: the code here is outdated, and no longer working
-
-import tlslite
-
-from electrum.transaction import Transaction
-from electrum import paymentrequest
-from electrum import paymentrequest_pb2 as pb2
-from electrum.bitcoin import address_to_script
-
-chain_file = 'mychain.pem'
-cert_file = 'mycert.pem'
-amount = 1000000
-address = "18U5kpCAU4s8weFF8Ps5n8HAfpdUjDVF64"
-memo = "blah"
-out_file = "payreq"
-
-
-with open(chain_file, 'r') as f:
-    chain = tlslite.X509CertChain()
-    chain.parsePemList(f.read())
-
-certificates = pb2.X509Certificates()
-certificates.certificate.extend(map(lambda x: str(x.bytes), chain.x509List))
-
-with open(cert_file, 'r') as f:
-    rsakey = tlslite.utils.python_rsakey.Python_RSAKey.parsePEM(f.read())
-
-script = address_to_script(address)
-
-pr_string = paymentrequest.make_payment_request(amount, script, memo, rsakey)
-
-with open(out_file,'wb') as f:
-    f.write(pr_string)
-
-print("Payment request was written to file '%s'"%out_file)