remove all mongodb related code

scripts/start-hyperopt-worker.py

@@ -1,27 +0,0 @@
-#!/usr/bin/env python3
-import multiprocessing
-import os
-import subprocess
-
-PROC_COUNT = multiprocessing.cpu_count() - 1
-DB_NAME = 'freqtrade_hyperopt'
-WORK_DIR = os.path.join(
-    os.path.sep,
-    os.path.abspath(os.path.dirname(__file__)),
-    '..', '.hyperopt', 'worker'
-)
-if not os.path.exists(WORK_DIR):
-    os.makedirs(WORK_DIR)
-
-# Spawn workers
-command = [
-    'hyperopt-mongo-worker',
-    '--mongo=127.0.0.1:1234/{}'.format(DB_NAME),
-    '--poll-interval=0.1',
-    '--workdir={}'.format(WORK_DIR),
-]
-processes = [subprocess.Popen(command) for i in range(PROC_COUNT)]
-
-# Join all workers
-for proc in processes:
-    proc.wait()

scripts/start-mongodb.py

@@ -1,21 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import subprocess
-
-
-DB_PATH = os.path.join(
-    os.path.sep,
-    os.path.abspath(os.path.dirname(__file__)),
-    '..', '.hyperopt', 'mongodb'
-)
-if not os.path.exists(DB_PATH):
-    os.makedirs(DB_PATH)
-
-subprocess.Popen([
-    'mongod',
-    '--bind_ip=127.0.0.1',
-    '--port=1234',
-    '--nohttpinterface',
-    '--dbpath={}'.format(DB_PATH),
-]).wait()