[cff] Remove init/fini from blend_arg_t

src/hb-cff2-interp-cs.hh

@@ -35,18 +35,6 @@ using namespace OT;
 
 struct blend_arg_t : number_t
 {
-  void init ()
-  {
-    number_t::init ();
-    deltas.init ();
-  }
-
-  void fini ()
-  {
-    number_t::fini ();
-    deltas.fini_deep ();
-  }
-
   void set_int (int v) { reset_blends (); number_t::set_int (v); }
   void set_fixed (int32_t v) { reset_blends (); number_t::set_fixed (v); }
   void set_real (double v) { reset_blends (); number_t::set_real (v); }