Remove init_local_none option

Cython/Compiler/Nodes.py

@@ -1506,10 +1506,6 @@ def generate_function_definitions(self, env, code):
             self.getbuffer_normal_cleanup(code)
         # ----- Return cleanup for both error and no-error return
         code.put_label(code.return_from_error_cleanup_label)
-        if not Options.init_local_none:
-            for entry in lenv.var_entries:
-                if lenv.control_flow.get_state((entry.name, 'initialized')) is not True:
-                    entry.xdecref_cleanup = 1
 
         for entry in lenv.var_entries:
             if entry.type.is_pyobject:

Cython/Compiler/Options.py

@@ -49,12 +49,6 @@
 # If this is 0 it simply creates a wrapper.
 lookup_module_cpdef = False
 
-# This will set local variables to None rather than NULL which may cause
-# surpress what would be an UnboundLocalError in pure Python but eliminates
-# checking for NULL on every use, and can decref rather than xdecref at the end.
-# WARNING: This is a work in progress, may currently segfault.
-init_local_none = True
-
 # Whether or not to embed the Python interpreter, for use in making a
 # standalone executable or calling from external libraries.
 # This will provide a method which initalizes the interpreter and

Cython/Compiler/Symtab.py

@@ -1386,7 +1386,7 @@ def declare_var(self, name, type, pos,
         entry = Scope.declare_var(self, name, type, pos,
                                   cname=cname, visibility=visibility,
                                   api=api, in_pxd=in_pxd, is_cdef=is_cdef)
-        if type.is_pyobject and not Options.init_local_none:
+        if type.is_pyobject:
             entry.init = "0"
         entry.is_local = 1