Update outdated TODO file

TODO

@@ -1,24 +1,14 @@
 General fixes:
 =============
 
-- AAT 'morx' implementation.
-
-- Return "safe-to-break" bit from shaping.
-
 - Implement 'rand' feature.
 
-- mask propagation? (when ligation, "or" the masks).
-
 
 API issues:
 ===========
 
 - API to accept a list of languages?
 
-- Add init_func to font_funcs.  Adjust ft.
-
-- 'const' for getter APIs? (use mutable internally)
-
 - Remove hb_ot_shape_glyphs_closure()?
 
 
@@ -39,7 +29,7 @@ API additions
 
 - Add query / enumeration API for aalt-like features?
 
-- SFNT api? get_num_faces? get_table_tags? (there's something in stash)
+- SFNT api? get_num_faces?
 
 - Add segmentation API
 
@@ -50,20 +40,3 @@ hb-view / hb-shape enhancements:
 ===============================
 
 - Add --width, --height, --auto-size, --ink-box, --align, etc?
-
-
-Tests to write:
-==============
-
-- ot-layout enumeration API (needs font)
-
-- Finish test-shape.c, grep for TODO
-
-- Finish test-unicode.c, grep for TODO
-
-- GObject, FreeType, etc
-
-- hb_cache_t and relatives
-
-- hb_feature_to/from_string
-- hb_buffer_[sg]et_contents