SSH: Use OpenSSH tools

... instead of our own SSH library.

Advantages:
    - Full compatibility with OpenSSH behavior guaranteed.
    - Minimal maintenance effort.
    - Less code to build.
    - Big chunk of 3rd party sources can be removed from our repository.

One the downside, Windows users now need to install OpenSSH for
RemoteLinux support. Hoewever, people doing embedded development
probably have it installed anyway.

[ChangeLog] Switched SSH backend to OpenSSH

Fixes: QTCREATORBUG-15744
Fixes: QTCREATORBUG-15807
Fixes: QTCREATORBUG-19306
Fixes: QTCREATORBUG-20210
Change-Id: Ifcfefdd39401e45ba1f4aca35d2c5bf7046c7aab
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 0 insertions, 49 deletions

diff --git a/README.md b/README.md
index e51b533165..0140bacb3b 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,6 @@ Prerequisites:
 * LLVM/Clang 6.0.0 or later (optional, needed for the Clang Code Model, see the
   section "Get LLVM/Clang for the Clang Code Model")
     * CMake (only for manual builds of LLVM/Clang)
-* Python 2.6 or later (needed for building the bundled Botan library)
 * Qbs 1.7.x (optional, sources also contain Qbs itself)
 
 The installed toolchains have to match the one Qt was compiled with.
@@ -389,54 +388,6 @@ we thank the authors who made this possible:
   IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-### Botan, a C++ crypto library. Version 1.10.2
-
-  Botan (http://botan.randombit.net/) is distributed under these terms::
-
-  Copyright (C) 1999-2011 Jack Lloyd
-                2001 Peter J Jones
-                2004-2007 Justin Karneges
-                2004 Vaclav Ovsik
-                2005 Matthew Gregan
-                2005-2006 Matt Johnston
-                2006 Luca Piccarreta
-                2007 Yves Jerschow
-                2007-2008 FlexSecure GmbH
-                2007-2008 Technische Universitat Darmstadt
-                2007-2008 Falko Strenzke
-                2007-2008 Martin Doering
-                2007 Manuel Hartl
-                2007 Christoph Ludwig
-                2007 Patrick Sona
-                2010 Olivier de Gaalon
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are
-  met:
-
-  1. Redistributions of source code must retain the above copyright
-  notice, this list of conditions, and the following disclaimer.
-
-  2. Redistributions in binary form must reproduce the above copyright
-  notice, this list of conditions, and the following disclaimer in the
-  documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) "AS IS" AND ANY EXPRESS OR
-  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
-  ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE
-  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
-  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-  OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-  The source code of Botan C++ crypto library can be found in
-  QtCreator/src/libs/3rdparty
-
 ### SQLite, in-process library that implements a SQL database engine
 
 SQLite (https://www.sqlite.org) is in the Public Domain.