x86: Remove broadcast_not_on_src_operand

Remove broadcast_not_on_src_operand since it is unused.

	* config/tc-i386.c (i386_error): Remove
	broadcast_not_on_src_operand.
	(match_template): Likewse.

gas/ChangeLog

@@ -1,3 +1,9 @@
+2018-07-23  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/tc-i386.c (i386_error): Remove
+	broadcast_not_on_src_operand.
+	(match_template): Likewse.
+
 2018-07-23  Claudiu Zissulescu <claziss@synopsys.com>
 
 	* testsuite/gas/arc/st.d: Fix test.

gas/config/tc-i386.c

@@ -269,7 +269,6 @@ enum i386_error
     invalid_vector_register_set,
     unsupported_vector_index_register,
     unsupported_broadcast,
-    broadcast_not_on_src_operand,
     broadcast_needed,
     unsupported_masking,
     mask_not_on_destination,
@@ -5769,9 +5768,6 @@ check_reverse:
 	case unsupported_broadcast:
 	  err_msg = _("unsupported broadcast");
 	  break;
-	case broadcast_not_on_src_operand:
-	  err_msg = _("broadcast not on source memory operand");
-	  break;
 	case broadcast_needed:
 	  err_msg = _("broadcast is needed for operand of such type");
 	  break;