Deprecate autosiso.bat and autosiso.

These are no longer needed, since autoninja now delegates to either
Ninja or Siso based on the value of the "use_siso" GN arg.

Bug: b/293657720
Change-Id: I612640c6f902b2a1336f856fdf3f723214114ff9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4997648
Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Commit-Queue: Philipp Wollermann <philwo@chromium.org>
Reviewed-by: Fumitoshi Ukai <ukai@google.com>
Reviewed-by: Junji Watanabe <jwata@google.com>

autosiso

@@ -4,5 +4,9 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-base_dir=$(dirname "$0")
-PYTHONDONTWRITEBYTECODE=1 exec python3 "$base_dir/autosiso.py" "$@"
+echo "Error: 'autosiso' is deprecated and will be removed soon." >&2
+echo "" >&2
+echo "You can just run 'autoninja' instead, which will delegate either to Ninja" >&2
+echo "or to Siso based on the value of the 'use_siso' GN arg." >&2
+
+exit 1

autosiso.bat

@@ -4,11 +4,11 @@
 :: found in the LICENSE file.
 setlocal
 
-:: Ensure that "depot_tools" is somewhere in PATH so this tool can be used
-:: standalone, but allow other PATH manipulations to take priority.
-set PATH=%PATH%;%~dp0
+echo Error: 'autosiso' is deprecated and will be removed soon.
+echo.
+echo You can just run 'autoninja' instead, which will delegate either to Ninja
+echo or to Siso based on the value of the 'use_siso' GN arg.
 
-:: Defer control.
-:: Add double quotes to the arguments to preserve the special '^' character.
-:: See autosiso.py for more information.
-python3 "%~dp0\autosiso.py" "%*"
+:: Return an error code of 1 so that if a developer types:
+:: "autosiso chrome && chrome" then the second part won't accidentally be run.
+cmd /c exit 1