int sqlite3_cancel_auto_extension(void(*xEntryPoint)(void));
R-21228-24308:[The sqlite3_cancel_auto_extension(X) interface unregisters the initialization routine X that was registered using a prior call to sqlite3_auto_extension(X). ] R-40248-50202:[The sqlite3_cancel_auto_extension(X) routine returns 1 if initialization routine X was successfully unregistered and it returns 0 if X was not on the list of initialization routines. ]