Revert "Add a description of the internal array data structure."

Let's focus on the core features, and add the fluff later.

include/types.h

@@ -1,38 +0,0 @@
-#ifndef LIBABACUS_TYPES_H
-#define LIBABACUS_TYPES_H
-
-#include "ref_vec.h"
-
-/**
- * A struct that represents an array
- * in libab.
- */
-struct libab_array_s {
-    /**
-     * The elements in the array.
-     */
-    libab_ref_vec elems;
-};
-
-typedef struct libab_array_s libab_array;
-
-/**
- * Initializes the array.
- * @param array the array to initialize.
- * @return the result of the initialization.
- */
-libab_result libab_array_init(libab_array* array);
-/**
- * Inserts an element into the array.
- * @param array the array to insert.
- * @param value the interpreter value to insert.
- * @return the result of the insertion.
- */
-libab_result libab_array_insert(libab_array* array, libab_ref* value);
-/**
- * Frees the given array.
- * @param array the array to free.
- */
-void libab_array_free(libab_array* array);
-
-#endif