Revert previous two commits (e046627, a292f52)

pyinstaller.spec

@@ -36,6 +36,7 @@ hidden_imports = [
     'allmydata.stats',
     'base64',
     'cffi',
+    'charset_normalizer.md__mypyc',
     'collections',
     'commands',
     'Crypto',

setup.py

@@ -147,13 +147,6 @@ install_requires = [
     # for pid-file support
     "psutil",
     "filelock",
-
-    # treq needs requests, requests needs charset_normalizer,
-    # charset_normalizer breaks PyInstaller
-    # (https://github.com/Ousret/charset_normalizer/issues/253). So work around
-    # this by using a lower version number. Once upstream issue is fixed, or
-    # requests drops charset_normalizer, this can go away.
-    "charset_normalizer < 3",
 ]
 
 setup_requires = [