Removed an error message from DRCcif.c; otherwise it raises an

error whenever there are no DRC-CIF rules in the techfile.  The
same error will be raised anyway when reading the techfile if
DRC-CIF rules are declared without a style being specified.

drc/DRCcif.c

@@ -504,10 +504,7 @@ drcCifCheck(arg)
 
     if (CIFCurStyle != drcCifStyle)
     {
-	if (drcNeedStyle == NULL) {
-	    TxError("Error:  No DRC CIF style declared!\n");
-	    return;
-	}
+	if (drcNeedStyle == NULL) return;
 
 	CIFSaveStyle = CIFCurStyle;