removed SimpleRuleAdaptor

modules/Bio/EnsEMBL/Hive/DBSQL/DBAdaptor.pm

@@ -63,8 +63,7 @@ sub get_available_adaptors{
     "AnalysisData"     => "Bio::EnsEMBL::Hive::DBSQL::AnalysisDataAdaptor",
     "AnalysisStats"    => "Bio::EnsEMBL::Hive::DBSQL::AnalysisStatsAdaptor",
     "AnalysisCtrlRule" => "Bio::EnsEMBL::Hive::DBSQL::AnalysisCtrlRuleAdaptor",
-    "DataflowRule"     => "Bio::EnsEMBL::Hive::DBSQL::DataflowRuleAdaptor",
-    "SimpleRule"       => "Bio::EnsEMBL::Hive::DBSQL::SimpleRuleAdaptor");
+    "DataflowRule"     => "Bio::EnsEMBL::Hive::DBSQL::DataflowRuleAdaptor");
   return (\%pairs);
 }