This removes a "fix" originally done for Solaris that is no longer needed
since we fixed our stdbool.h header file to work when compiling C++
programs:

  14612 - patch for xmp.h for Solaris (don't include stdbool.h)
  https://bugs.freedesktop.org/show_bug.cgi?id=14612

XXX file upstream bug

--- exempi-2.2.2/exempi/xmp.h	2014-08-31 15:03:10.000000000 -0700
+++ exempi-2.2.2.new/exempi/xmp.h	2015-07-08 11:17:12.175501827 -0700
@@ -40,10 +40,7 @@
 #define __EXEMPI_XMP_H_
 
 #include <stdlib.h>
-/* stdbool choke on Sun (bug #14612) */
-#if !defined(__sun)
 #include <stdbool.h>
-#endif
 #include <stdint.h>
 
 #include <time.h>