[gcc r12-4644] doc: Remove details around Itanium on GNU/Linux and Windows

[Gerald Pfeifer <gerald@gcc.gnu.org>]

https://gcc.gnu.org/g:dfe1ac896af0452706d29e20c593599ed3b09244

commit r12-4644-gdfe1ac896af0452706d29e20c593599ed3b09244
Author: Gerald Pfeifer <gerald@pfeifer.com>
Date:   Sun Oct 24 11:19:08 2021 +0200

    doc: Remove details around Itanium on GNU/Linux and Windows
    
    gcc:
            * doc/install.texi (Specific): Remove obsolete details
            around GNU/Linux on Itanium.
            (Specific): Remove reference to Windows for Itanium.

Diff:
---
 gcc/doc/install.texi | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 38f96bf5a89..36c8280d7da 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -4198,15 +4198,6 @@ If you are using the installed system libunwind library with
 @option{--with-system-libunwind}, then you must use libunwind 0.98 or
 later.
 
-None of the following versions of GCC has an ABI that is compatible
-with any of the other versions in this list, with the exception that
-Red Hat 2.96 and Trillian 000171 are compatible with each other:
-3.1, 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717.
-This primarily affects C++ programs and programs that create shared libraries.
-GCC 3.1 or later is recommended for compiling linux, the kernel.
-As of version 3.1 GCC is believed to be fully ABI compliant, and hence no
-more major ABI changes are expected.
-
 @html
 <hr />
 @end html
@@ -5083,8 +5074,6 @@ GCC contains support for x86-64 using the mingw-w64
 runtime library, available from @uref{https://mingw-w64.org/doku.php}.
 This library should be used with the target triple x86_64-pc-mingw32.
 
-Presently Windows for Itanium is not supported.
-
 @subheading Windows CE
 Windows CE is supported as a target only on Hitachi
 SuperH (sh-wince-pe), and MIPS (mips-wince-pe).