Remove (after look at that all was ported)

svn path=/trunk/KDE/kdemultimedia/libkcddb/; revision=562622

configure.in.in

-AC_ARG_WITH(musicbrainz,
-  [AC_HELP_STRING(--with-musicbrainz,
-    [enable support for MusicBrainz @<:@default=check@:>@])],
-  [], with_musicbrainz=check)
-
-have_musicbrainz=no
-if test "x$with_musicbrainz" != xno; then
-  KDE_CHECK_HEADER(musicbrainz/musicbrainz.h, have_musicbrainz=yes)
-
-  if test "x$with_musicbrainz" != xcheck && test "x$have_musicbrainz" != xyes; then
-    AC_MSG_ERROR([--with-musicbrainz was given, but test for MusicBrainz failed])
-  fi
-fi
-
-if test "x$have_musicbrainz" = xyes; then
-  AC_DEFINE(HAVE_MUSICBRAINZ, 1, [have MusicBrainz])
-else
-  AC_DEFINE(HAVE_MUSICBRAINZ, 0, [have MusicBrainz])
-fi
-
-AM_CONDITIONAL(build_MB, test "x$have_musicbrainz" = xyes)