fix: merging all the code

src/utils/ast/ast.h

@@ -7,15 +7,4 @@
 #include "utils/ast/ast_list.h"
 #include "utils/ast/ast_void.h"
 
-/* @brief: returns an ast* with corresponding data and type.
- *
- * @note: this function should only be called by ast_create_[TYPE] functions.
- */
-struct ast *ast_create(enum ast_type type, void *data);
-
-/* @brief: frees the given ast. If ast is NULL, does nothing.
- *
- */
-void ast_free(struct ast *node);
-
 #endif /* ! AST_H */