Remove unused tf_no_class_instantiations enum member

gcc/cp/ChangeLog:
	* cp-tree.h (enum tsubst_flags)<tf_no_class_instantiations>:
	Remove.
	* pt.c (tsubst): Remove the use of tf_no_class_instantiations.

From-SVN: r166255

gcc/cp/ChangeLog

+2010-11-02  Dodji Seketeli  <dodji@redhat.com>
+
+	* cp-tree.h (enum tsubst_flags)<tf_no_class_instantiations>:
+	Remove.
+	* pt.c (tsubst): Remove the use of tf_no_class_instantiations.
+
 2010-11-03  Jason Merrill  <jason@redhat.com>
 
 	PR c++/46277

gcc/cp/cp-tree.h

@@ -3960,8 +3960,6 @@ enum tsubst_flags {
 				    conversion.  */
   tf_no_access_control = 1 << 7, /* Do not perform access checks, even
 				    when issuing other errors.   */
-  /* Do not instantiate classes (used by count_non_default_template_args). */
-  tf_no_class_instantiations = 1 << 8,
   /* Convenient substitution flags combinations.  */
   tf_warning_or_error = tf_warning | tf_error
 };

gcc/cp/pt.c

@@ -10878,7 +10878,6 @@ tsubst (tree t, tree args, tsubst_flags_t complain, tree in_decl)
 	       But, such constructs have already been resolved by this
 	       point, so here CTX really should have complete type, unless
 	       it's a partial instantiation.  */
-	    if (!(complain & tf_no_class_instantiations))
 	    ctx = complete_type (ctx);
 	    if (!COMPLETE_TYPE_P (ctx))
 	      {