PY-33984 Restore the workaround for "ImportError: cannot import name 'TCyBinaryProtocol'" problem

python/helpers/third_party/thriftpy/_shaded_thriftpy/_compat.py

@@ -17,7 +17,7 @@ PY35 = sys.version_info >= (3, 5)
 PYPY = "__pypy__" in sys.modules
 
 UNIX = platform.system() in ("Linux", "Darwin")
-CYTHON = UNIX and not PYPY  # Cython always disabled in pypy and windows
+CYTHON = False
 
 # only Python 2.7.9 and Python 3.4 or above have true ssl context
 MODERN_SSL = sys.version_info >= (2, 7, 9)