glibc: removed attribute_hidden.patch

Note:

This is part of the agreement to remove historical patches which are not
really needed anymore but also remove architecture specific patches for
target architectures we cannot activiely support at the moment.

base/glibc/attribute_hidden.patch

@@ -1,30 +0,0 @@
-# --- SDE-COPYRIGHT-NOTE-BEGIN ---
-# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
-#
-# Filename: package/.../glibc/attribute_hidden.patch
-# Copyright (C) 2004 - 2006 The T2 SDE Project
-# Copyright (C) 1998 - 2003 Clifford Wolf
-#
-# More information can be found in the files COPYING and README.
-#
-# This patch file is dual-licensed. It is available under the license the
-# patched project is licensed under, as long as it is an OpenSource license
-# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
-# of the GNU General Public License as published by the Free Software
-# Foundation; either version 2 of the License, or (at your option) any later
-# version.
-# --- SDE-COPYRIGHT-NOTE-END ---
-
---- ./libio/libio.h.orig	Wed Nov  6 16:49:18 2002
-+++ ./libio/libio.h	Wed Nov  6 16:51:19 2002
-@@ -102,6 +102,10 @@
- # endif
- #endif
- 
-+#ifndef attribute_hidden
-+# define attribute_hidden
-+#endif
-+
- #define _IOS_INPUT	1
- #define _IOS_OUTPUT	2
- #define _IOS_ATEND	4