Remove pip magic since it isn't public API

requirements.txt

-pika>=0.11
-

setup.py

 import os
 from setuptools import setup, find_packages
-from pip.req.req_file import parse_requirements
-from pip.download import PipSession
 
 README = open(os.path.join(os.path.dirname(__file__), "README.md")).read()
 
@@ -9,13 +7,6 @@ README = open(os.path.join(os.path.dirname(__file__), "README.md")).read()
 os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
 
 
-def get_requirements_list():
-    filename = os.path.join(os.path.dirname(__file__), "requirements.txt")
-    objects = list(parse_requirements(filename, session=PipSession()))
-    strings = [str(o.req) for o in objects]
-    return strings
-
-
 setup(
     name='pikatasks',
     version='1.0',
@@ -28,7 +19,9 @@ setup(
     author='Art Lukyanchyk',
     author_email='artiom.lukyanchyk@hs-hannover.de',
     zip_safe=False,
-    install_requires=get_requirements_list(),
+    install_requires=[
+        'pika>=0.11'
+    ],
     classifiers=[
         'Environment :: Server',
         'Framework :: pika',