[config] Don't disable emoji sequences in HB_TINY

It makes sense to disable this code these if editing is not needed.
However, this is also necessary to correctly display emoji sequences
in right-to-left direction.  For that reason, don't auto-disable it.

src/hb-config.hh

@@ -58,7 +58,6 @@
 #define HB_NO_BITMAP
 #define HB_NO_CFF
 #define HB_NO_COLOR
-#define HB_NO_EMOJI
 #define HB_NO_FACE_COLLECT_UNICODES
 #define HB_NO_GETENV
 #define HB_NO_HINTING

src/hb-ot-shape.cc

@@ -479,7 +479,7 @@ hb_set_unicode_props (hb_buffer_t *buffer)
     {
 	_hb_glyph_info_set_continuation (&info[i]);
     }
-#ifndef HB_NO_EMOJI
+#ifndef HB_NO_EMOJI_SEQUENCES
     else if (unlikely (_hb_glyph_info_is_zwj (&info[i])))
     {
       _hb_glyph_info_set_continuation (&info[i]);

src/hb-unicode.cc

@@ -572,7 +572,7 @@ _hb_modified_combining_class[256] =
 /*
  * Emoji
  */
-#ifndef HB_NO_EMOJI
+#ifndef HB_NO_EMOJI_SEQUENCES
 
 #include "hb-unicode-emoji-table.hh"