Remove unnecessary imports

app/__init__.py

-    # app/__init__.py
+# app/__init__.py
 
 # local imports
 from __future__ import print_function
 
-import os
-import sys
-import subprocess
-import time
-
 # third-party imports
 from flask import Flask, redirect, url_for, request, render_template, flash, session
-from flask_wtf import FlaskForm
 from flask_bootstrap import Bootstrap
-from wtforms import StringField, SubmitField, TextAreaField, validators
-from flask_socketio import SocketIO
-
-# global declarations
 
 
 def create_app(config_name):