Update Glib dependency to 2.40

src/common.c

@@ -67,54 +67,6 @@ static unsigned long unique_id = 0;
 
 static size_t _data_callback(void *ptr, size_t size, size_t nmemb, void *data);
 
-// taken from glib 2.30.3
-gchar*
-p_utf8_substring(const gchar *str, glong start_pos, glong end_pos)
-{
-    gchar *start, *end, *out;
-
-    start = g_utf8_offset_to_pointer (str, start_pos);
-    end = g_utf8_offset_to_pointer (start, end_pos - start_pos);
-
-    out = g_malloc (end - start + 1);
-    memcpy (out, start, end - start);
-    out[end - start] = 0;
-
-    return out;
-}
-
-void
-p_slist_free_full(GSList *items, GDestroyNotify free_func)
-{
-    g_slist_foreach (items, (GFunc) free_func, NULL);
-    g_slist_free (items);
-}
-
-void
-p_list_free_full(GList *items, GDestroyNotify free_func)
-{
-    g_list_foreach (items, (GFunc) free_func, NULL);
-    g_list_free (items);
-}
-
-gboolean
-p_hash_table_add(GHashTable *hash_table, gpointer key)
-{
-    // doesn't handle when key exists, but value == NULL
-    gpointer found = g_hash_table_lookup(hash_table, key);
-    g_hash_table_replace(hash_table, key, key);
-
-    return (found == NULL);
-}
-
-gboolean
-p_hash_table_contains(GHashTable *hash_table, gconstpointer key)
-{
-    // doesn't handle when key exists, but value == NULL
-    gpointer found = g_hash_table_lookup(hash_table, key);
-    return (found != NULL);
-}
-
 gboolean
 create_dir(char *name)
 {