Reduce Cython's module size of "Actions", "Scanners", "StringIOTree",...

Reduce Cython's module size of "Actions", "Scanners", "StringIOTree", "Visitor" and "Code" by disabling auto-pickling.

Cython/Compiler/Code.py

 # cython: language_level = 2
+# cython: auto_pickle=False
 #
 #   Code output module
 #

Cython/Compiler/Visitor.py

 # cython: infer_types=True
 # cython: language_level=3
+# cython: auto_pickle=False
 
 #
 #   Tree visitor and transform framework

Cython/Plex/Actions.py

+# cython: auto_pickle=False
 #=======================================================================
 #
 #   Python Lexical Analyser

Cython/Plex/Scanners.py

+# cython: auto_pickle=False
 #=======================================================================
 #
 #   Python Lexical Analyser

Cython/StringIOTree.py

+# cython: auto_pickle=False
+
 r"""
 Implements a buffer with insertion points. When you know you need to
 "get back" to a place and write more later, simply call insertion_point()