Remove outdated requirements file. Leave just ove file valid for

linux and windows

requirements/requirements_win.txt

@@ -1,36 +0,0 @@
-aiohttp==3.5.4
-altgraph==0.16.1
-asn1crypto==0.24.0
-async-timeout==3.0.1
-attrs==19.1.0
-certifi==2019.3.9
-cffi==1.11.5
-chardet==3.0.4
-cryptography==2.3.1
-Cython==0.29.6
-future==0.16.0
-idna==2.7
-intel-openmp==2019.0
-macholib==1.11
-multidict==4.5.2
-numpy==1.15.2
-pandas==0.23.4
-pefile==2018.8.8
-pycparser==2.19
-pydub==0.23.0
-pygame==1.9.4
-PyInstaller==3.4
-pyOpenSSL==18.0.0
-PyQt5==5.10.1
-PySocks==1.6.8
-python-dateutil==2.7.3
-pytz==2018.5
-pywin32-ctypes==0.2.0
-QtAwesome==0.5.0
-QtPy==1.5.1
-sip==4.19.8
-six==1.11.0
-urllib3==1.24
-win-inet-pton==1.0.1
-wincertstore==0.2
-yarl==1.3.0

threads.py

@@ -12,8 +12,10 @@ from PyQt5.QtCore import QThread, pyqtSignal
 from constants import Constants, Database, ChecksumWhat
 from utilities import checksum_ok
 
+# Needed for pyinstaller compilation.
 import encodings.idna
 
+
 class ThreadStatus(Enum):
     """Possible thread status."""