Having wixl and wixl-heat use the same header means that, if wixl-heat is built after wixl, anything relying on the full wixl.h subsequently will fail. wixl-heat doesn't need a header, so we can stop using it.
Fixes: #31 Signed-off-by: Stephen Kitt <steve@sk2.org>
diff --git a/tools/wixl/meson.build b/tools/wixl/meson.build index bcce524..8a056fa 100644
