11972 resync smatch

@@ -133,11 +133,10 @@
 typedef void (*validate_decl_t)(struct symbol *decl);
 extern struct token *external_declaration(struct token *, struct symbol_list **, validate_decl_t);
 
 extern struct symbol *ctype_integer(int size, int want_unsigned);
 
-extern void copy_statement(struct statement *src, struct statement *dst);
 extern int inline_function(struct expression *expr, struct symbol *sym);
 extern void uninline(struct symbol *sym);
 extern void init_parser(int);
 
 static inline void stmt_set_parent_stmt(struct statement *stmt, struct statement *parent)