[glib] Revert "GKeyFile – Add array length annotations to to_data(), get_keys() and get_groups()"

[Emmanuele Bassi <ebassi src gnome org>]

commit 039c40e6ec96020e568fb6c1e45dc48f3c4fa6de
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Jul 21 15:33:37 2017 +0100

    Revert "GKeyFile – Add array length annotations to to_data(), get_keys() and get_groups()"
    
    This reverts commit fd329f4853f180eb92746f39fc96fd5d91394009.
    
    The commit changed the Introspection ABI, and it requires a change in
    any application using an introspection-based language binding.

 glib/gkeyfile.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/glib/gkeyfile.c b/glib/gkeyfile.c
index 4ac7c08..9831fbe 100644
--- a/glib/gkeyfile.c
+++ b/glib/gkeyfile.c
@@ -1489,7 +1489,7 @@ g_key_file_flush_parse_buffer (GKeyFile  *key_file,
  * Note that this function never reports an error,
  * so it is safe to pass %NULL as @error.
  *
- * Returns: (array length=length): a newly allocated string holding
+ * Returns: a newly allocated string holding
  *   the contents of the #GKeyFile 
  *
  * Since: 2.6
@@ -1559,7 +1559,7 @@ g_key_file_to_data (GKeyFile  *key_file,
  * be found, %NULL is returned and @error is set to
  * #G_KEY_FILE_ERROR_GROUP_NOT_FOUND.
  *
- * Returns: (array zero-terminated=1 length=length) (transfer full): a newly-allocated %NULL-terminated 
array of strings.
+ * Returns: (array zero-terminated=1) (transfer full): a newly-allocated %NULL-terminated array of strings.
  *     Use g_strfreev() to free it.
  *
  * Since: 2.6
@@ -1654,7 +1654,7 @@ g_key_file_get_start_group (GKeyFile *key_file)
  * The array of returned groups will be %NULL-terminated, so 
  * @length may optionally be %NULL.
  *
- * Returns: (array zero-terminated=1 length=length) (transfer full): a newly-allocated %NULL-terminated 
array of strings.
+ * Returns: (array zero-terminated=1) (transfer full): a newly-allocated %NULL-terminated array of strings.
  *   Use g_strfreev() to free it.
  * Since: 2.6
  **/