build _asyncio as static module

Author: kumaraditya303

Modules/Setup.bootstrap.in

@@ -38,3 +38,5 @@ _symtable symtablemodule.c
 
 # for systems without $HOME env, used by site._getuserbase()
 @MODULE_PWD_TRUE@pwd pwdmodule.c
+
+@MODULE__ASYNCIO_TRUE@_asyncio _asynciomodule.c

Modules/Setup.stdlib.in

@@ -32,7 +32,6 @@
 ############################################################################
 # Modules that should always be present (POSIX and Windows):
 @MODULE_ARRAY_TRUE@array arraymodule.c
-@MODULE__ASYNCIO_TRUE@_asyncio _asynciomodule.c
 @MODULE__BISECT_TRUE@_bisect _bisectmodule.c
 @MODULE__CSV_TRUE@_csv _csv.c
 @MODULE__HEAPQ_TRUE@_heapq _heapqmodule.c

Modules/_asynciomodule.c

@@ -1,7 +1,3 @@
-#ifndef Py_BUILD_CORE_BUILTIN
-#  define Py_BUILD_CORE_MODULE 1
-#endif
-
 #include "Python.h"
 #include "pycore_freelist.h"      // _Py_FREELIST_POP()
 #include "pycore_genobject.h"