Remove '_warnings_context' global string.

Author: nascheme

Include/internal/pycore_global_objects_fini_generated.h

@@ -265,7 +265,6 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(_type_)
         STRUCT_FOR_ID(_uninitialized_submodules)
         STRUCT_FOR_ID(_warn_unawaited_coroutine)
-        STRUCT_FOR_ID(_warnings_context)
         STRUCT_FOR_ID(_xoptions)
         STRUCT_FOR_ID(abs_tol)
         STRUCT_FOR_ID(access)

Include/internal/pycore_global_strings.h

@@ -29,7 +29,6 @@
     'defaultaction',
     'filters',
     'onceregistry',
-    '_warnings_context',
 
     # from WRAP_METHOD() in Objects/weakrefobject.c
     '__bytes__',