[atk] Not using GTK-Doc tag "Virtual" anymore, as is deprecated

[Alejandro Piñeiro Iglesias <apinheiro src gnome org>]

commit 25e45de9b34b2de5f5f25e50f53da491271f5aaa
Author: Alejandro Piñeiro <apinheiro igalia com>
Date:   Mon Dec 9 19:41:09 2013 +0100

    Not using GTK-Doc tag "Virtual" anymore, as is deprecated

 atk/atkdocument.c |    4 ----
 atk/atktext.c     |    1 -
 2 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/atk/atkdocument.c b/atk/atkdocument.c
index c975132..b0a8c8f 100755
--- a/atk/atkdocument.c
+++ b/atk/atkdocument.c
@@ -238,7 +238,6 @@ atk_document_get_document (AtkDocument *document)
  * Returns: a UTF-8 string indicating the POSIX-style LC_MESSAGES
  *          locale of the document content as a whole, or NULL if
  *          the document content does not specify a locale.
- * Virtual: get_document_locale
  **/
 const gchar *
 atk_document_get_locale (AtkDocument *document)
@@ -272,7 +271,6 @@ atk_document_get_locale (AtkDocument *document)
  * Returns: (transfer none): An AtkAttributeSet containing the explicitly
  *          set name-value-pair attributes associated with this document
  *          as a whole.
- * Virtual: get_document_attributes
  **/
 AtkAttributeSet *
 atk_document_get_attributes (AtkDocument *document)
@@ -304,7 +302,6 @@ atk_document_get_attributes (AtkDocument *document)
  * Returns: a string value associated with the named attribute for this
  *    document, or NULL if a value for #attribute_name has not been specified
  *    for this document.
- * Virtual: get_document_attribute_value
  */
 const gchar *
 atk_document_get_attribute_value (AtkDocument *document, 
@@ -338,7 +335,6 @@ atk_document_get_attribute_value (AtkDocument *document,
  * Returns: TRUE if #value is successfully associated with #attribute_name
  *          for this document, FALSE otherwise (e.g. if the document does not
  *          allow the attribute to be modified).
- * Virtual: set_document_attribute
  */
 gboolean
 atk_document_set_attribute_value (AtkDocument *document, 
diff --git a/atk/atktext.c b/atk/atktext.c
index d55f5de..d142c9a 100755
--- a/atk/atktext.c
+++ b/atk/atktext.c
@@ -1090,7 +1090,6 @@ atk_text_get_range_extents (AtkText          *text,
  *
  * Returns: (array zero-terminated=1): Array of AtkTextRange. The last
  *          element of the array returned by this function will be NULL.
- * Virtual: get_bounded_ranges
  **/
 AtkTextRange**
 atk_text_get_bounded_ranges (AtkText          *text,