Merge JoinMarket-Org/joinmarket-clientserver#990: remove unneeded shebangs

7c4ba09dab remove executable bit (undeath)
f93ccf0f0c remove unneeded shebangs (undeath)

Pull request description:

  Minor code cleanup, removes shebang from files that are not meant to be executed. Additionally, the executable bit is removed from one of the GPG pubkeys.

ACKs for top commit:
  kristapsk:
    utACK 7c4ba09dab

Tree-SHA512: afce99ceb910ee658d986a07a5c1b6447d4ec3e917921630e47a82b8788984ec150f4c692e5eb47b48d95d468878fb2d741d511622a30e328741e218f1f33972

jmbitcoin/jmbitcoin/secp256k1_ecies.py

@@ -1,5 +1,3 @@
-#!/usr/bin/python
-
 import coincurve as secp256k1
 import base64
 import hmac

jmbitcoin/jmbitcoin/secp256k1_main.py

@@ -1,4 +1,3 @@
-#!/usr/bin/python
 import base64
 import struct
 import coincurve as secp256k1

jmbitcoin/jmbitcoin/secp256k1_transaction.py

@@ -1,5 +1,3 @@
-#!/usr/bin/python
-
 # note, only used for non-cryptographic randomness:
 import random
 import json

jmbitcoin/test/test_tx_signing.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import pytest
 
 import hashlib

jmclient/jmclient/old_mnemonic.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-#
 # Electrum - lightweight Bitcoin client
 # Copyright (C) 2011 thomasv@gitorious
 #

jmclient/jmclient/podle.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 #Proof Of Discrete Logarithm Equivalence
 #For algorithm steps, see https://gist.github.com/AdamISZ/9cbba5e9408d23813ca8
 import os

jmclient/jmclient/schedule.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 import copy
 import random
 import sys

jmclient/test/test_commitment_utils.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 from commontest import DummyBlockchainInterface
 import pytest
 

jmclient/test/test_maker.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 import datetime
 
 import jmbitcoin as btc

jmclient/test/test_taker.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 from future.utils import iteritems
 from commontest import DummyBlockchainInterface
 import jmbitcoin as bitcoin

jmdaemon/test/test_orderbookwatch.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 import pytest
 
 from jmdaemon.orderbookwatch import OrderbookWatch