Removed unused AC_CHECKING

configure.ac

@@ -8,13 +8,6 @@ AC_PREREQ(2.67)
 
 tooldir="$srcdir/tool"
 
-dnl   override AC_CHECKING
-dnl   placed here due to aclocal(1)'s
-dnl   ignoring this definition in separate files
-AC_DEFUN([AC_CHECKING],[dnl
-AC_REQUIRE([_COLORIZE_RESULT_PREPARE])dnl
-AS_MESSAGE([checking ${msg_checking}$1${msg_reset}...])])dnl
-
 AC_DISABLE_OPTION_CHECKING
 
 AC_ARG_VAR([cflags], [additional CFLAGS (ignored when CFLAGS is given)])