Remove support for the MNG file format and the bundled libmng

The MNG file format is generally abandoned, and libmng has been
unmaintained for several years.

The MNG plugin and bundled libmng has been moved to the
qtimageformats project on Gerrit.

Task-number: QTBUG-21869
Change-Id: I946432347014ffde2b72307a5f8b166ca5553602
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

1 files changed, 0 insertions, 27 deletions

diff --git a/src/3rdparty/libmng/makefiles/README b/src/3rdparty/libmng/makefiles/README
deleted file mode 100644
index 63faaafb0c..0000000000
--- a/src/3rdparty/libmng/makefiles/README
+++ /dev/null
@@ -1,27 +0,0 @@
-For conditions of distribution and use, see copyright notice in libmng.h
-or the file LICENSE in the top-level directory of the source distribution.
-
-This directory hosts the makefiles for a number of supported platforms.
-
-If you're using a system with POSIX shell capabilities, you can use the
-'configure' script in the top-level directory, or generate it by running
-'autogen.sh' if you have the necessary tools installed.
-
-Otherwise, copy the module for your environment (or the closest thing)
-into the libmng source-directory and change it to your needs. If you
-create a new file for a platform not on the list send it to me (gerard @
-libmng.com) and I'll be happy to include it in the next release!
-
-
-Current files:
-
-makefile.bcb3 - Borland C++ Builder
-makefile.vcwin32 - Microsoft Visual C++
-makefile.unix - generic Unix
-makefile.linux - Linux ELF (builds shared library)
-makefile.dj - DJGPP
-makefile.mingw - builds a static library for mingw32
-makefile.mingwdll - builds a dynamic library for mingw32
-makefile.irix - builds a static library for SGI/IRIX (6.5.21)
-
-Makefile.am, configure.in and acinclude.m4 (if present) - automake/autoconf source