[gtkmm-documentation] Remove the others/stock example.

[Murray Cumming <murrayc src gnome org>]

commit ae2477a0a60e308fa5dfcdb04e8f7932a0bef397
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Sep 26 11:53:04 2013 +0200

    Remove the others/stock example.
    
    * examples/Makefile.am:
    * examples/others/stock:
      Stock items are now deprecated in GTK+.
      It is annoying, but here is an explanation:
      https://mail.gnome.org/archives/gtk-devel-list/2013-July/msg00005.html

 examples/Makefile.am                  |    4 -
 examples/book/timeout/timerexample.cc |    1 -
 examples/others/stock/stock.cc        |  144 ---------------------------------
 3 files changed, 0 insertions(+), 149 deletions(-)
---
diff --git a/examples/Makefile.am b/examples/Makefile.am
index b4a591e..adbfa10 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -115,7 +115,6 @@ check_PROGRAMS =                                    \
        others/exception/exceptiontest                  \
        others/idle/idle                                \
        others/statusbar/statusbar                      \
-       others/stock/stock                              \
        others/tictactoe/ttt_test                       \
        others/treemodelcustom/example
 #Waiting for a gdk_cairo_region_from_surface(): others/window/wheelbarrow
@@ -692,9 +691,6 @@ others_idle_idle_SOURCES = \
 others_statusbar_statusbar_SOURCES = \
        others/statusbar/statusbar.cc
 
-others_stock_stock_SOURCES = \
-       others/stock/stock.cc
-
 others_tictactoe_ttt_test_SOURCES =    \
        others/tictactoe/tictactoe.cc   \
        others/tictactoe/tictactoe.h    \
diff --git a/examples/book/timeout/timerexample.cc b/examples/book/timeout/timerexample.cc
index dae4bab..613a776 100644
--- a/examples/book/timeout/timerexample.cc
+++ b/examples/book/timeout/timerexample.cc
@@ -20,7 +20,6 @@
 
 TimerExample::TimerExample() :
   m_Box(Gtk::ORIENTATION_HORIZONTAL, 10),
-    // use Gtk::Stock wherever possible for buttons, etc.
   m_ButtonAddTimer("_Add", true),
   m_ButtonDeleteTimer("_Remove", true),
   m_ButtonQuit("_Quit", true),