diff --git a/src/hb-unicode.hh b/src/hb-unicode.hh
index 9b181c11c30e5995b19868e35d188b9b0198f161..0c355f1113b4be8cad3ec6879a23bba041dfb098 100644
--- a/src/hb-unicode.hh
+++ b/src/hb-unicode.hh
@@ -105,9 +105,6 @@ HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE
   unsigned int
   modified_combining_class (hb_codepoint_t u)
   {
-    /* XXX This hack belongs to the Myanmar shaper. */
-    if (unlikely (u == 0x1037u)) u = 0x103Au;
-
     /* XXX This hack belongs to the USE shaper (for Tai Tham):
      * Reorder SAKOT to ensure it comes after any tone marks. */
     if (unlikely (u == 0x1A60u)) return 254;