Declare
  cursor c
      is
  select rowid
    from your_table
   where ...
     for update;
Begin
  For rec in c
  Loop
    Delete from your_table where current of c;
  End Loop;
  Commit;
End;
/

Declare
  cursor c
      is
  select rowid
    from your_table
   where ...
     for update;
Begin
  For rec in c
  Loop
    Delete from your_table where rowid = rec.rowid;
  End Loop;
  Commit;
End;
/

Declare
  cursor cur_del
      is
  select rowid
    from your_table
   where ...
     for update;

  type tab_type is table of ROWID index by binary_integer;
  temp_tab tab_type;
Begin
  open cur_del;
  fetch cur_del bulk collect into temp_tab;
  close cur_del;
  forall i in temp_tab.first..temp_tab.last
    delete from your_table where rowid = temp_tab(i);
  Commit;
end;
/