remove experimental pixman files

experimental/pixman/Pixman-version.h

-/*
- * Copyright © 2008 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use, copy,
- * modify, merge, publish, distribute, sublicense, and/or sell copies
- * of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 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.
- *
- * Author: Carl D. Worth <cworth@cworth.org>
- */
-
-#ifndef PIXMAN_VERSION_H__
-#define PIXMAN_VERSION_H__
-
-#ifndef PIXMAN_H__
-#  error pixman-version.h should only be included by pixman.h
-#endif
-
-#define PIXMAN_VERSION_MAJOR 0
-#define PIXMAN_VERSION_MINOR 27
-#define PIXMAN_VERSION_MICRO 33
-
-#define PIXMAN_VERSION_STRING "@PIXMAN_VERSION_MAJOR@.@PIXMAN_VERSION_MINOR@.@PIXMAN_VERSION_MICRO@"
-
-#define PIXMAN_VERSION_ENCODE(major, minor, micro) (    \
-      ((major) * 10000)                \
-    + ((minor) *   100)                \
-    + ((micro) *     1))
-
-#define PIXMAN_VERSION PIXMAN_VERSION_ENCODE(    \
-    PIXMAN_VERSION_MAJOR,            \
-    PIXMAN_VERSION_MINOR,            \
-    PIXMAN_VERSION_MICRO)
-
-#endif /* PIXMAN_VERSION_H__ */