[indic] Apply 'calt' and 'clig' across syllable boundaries

Fixes https://github.com/harfbuzz/harfbuzz/issues/3244
diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc
index 0983a32..4a8781c 100644
--- a/src/hb-ot-shape-complex-indic.cc
+++ b/src/hb-ot-shape-complex-indic.cc
@@ -202,9 +202,6 @@
   for (; i < INDIC_NUM_FEATURES; i++)
     map->add_feature (indic_features[i]);
 
-  map->enable_feature (HB_TAG('c','a','l','t'));
-  map->enable_feature (HB_TAG('c','l','i','g'));
-
   map->add_gsub_pause (_hb_clear_syllables);
 }