Backed out revision 1.217 as it causes an exception when trying to load a...

Backed out revision 1.217 as it causes an exception when trying to load a duplicate alias in case more than one database is used in a script for the same species when the species name is not specified.

modules/Bio/EnsEMBL/DBSQL/DBAdaptor.pm

@@ -144,10 +144,6 @@ sub new {
  
   $self = Bio::EnsEMBL::Utils::ConfigRegistry::gen_load($self);
 
-  if(!defined($species) ){
-    $reg->find_and_add_aliases($self);
-  }
-
   $self->species_id( $species_id || 1 );
 
   $self->is_multispecies( defined($is_multispecies)