s4-dsdb-tests: Remove trailing ';' in deletetest.py

Signed-off-by: Kamen Mazdrashki <kamenim@samba.org>
s4-dsdb-tests: Remove unused method get_ldap_connection()

Signed-off-by: Kamen Mazdrashki <kamenim@samba.org>
s4-dsdb-tests: Make unique object names to test with in deletetest

This way we can re-run the test again and again

Signed-off-by: Kamen Mazdrashki <kamenim@samba.org>
s4-dsdb-tests: Fix whitespace in deletetest.py

Signed-off-by: Kamen Mazdrashki <kamenim@samba.org>
s4-dsdb: Return error codes as windows does for Tombstone reanimation

Tested against Windows Server 2008 R2
In case we try to restore to already existing object, windows
returns: LDB_ERR_ENTRY_ALREADY_EXISTS
Otherwise it is: LDB_ERR_OPERATIONS_ERROR

Signed-off-by: Kamen Mazdrashki <kamenim@samba.org>