Revert "OBMFULL-5534 Configure CRaSH domain"

This reverts commit f2b6715db286fbfa922e1ea937c84868cd8ccfdb.
Revert "OBMFULL-5533 Admin authentication access points"

This reverts commit 00ff594940084500a1e473cd1f7bee096c1f6be9.
Revert "OBMFULL-5533 Authenticate admin on a given domain"

This reverts commit 74eb9d1d1e5f5f42508cde666b1bdac255090a7e.
Revert "OBMFULL-5533 Add admin flag in ObmUser"

This reverts commit 528297516706804640d0e02a82dfe0a511b2fc58.
Revert "OBMFULL-5533 Expose domain_global in Obm domain"

This reverts commit 79627b5a24ddafbb7c8eb43defd0e9a2854c0705.
Revert "OBMFULL-5532 Authentication on global domain should be done thru the database only"

This reverts commit 7b3748861897719a9c365880240f79befc28470a.
OBMFULL-5532 Authentication on global domain should be done thru the database only
OBMFULL-5533 Expose domain_global in Obm domain
OBMFULL-5533 Add admin flag in ObmUser
OBMFULL-5533 Authenticate admin on a given domain
OBMFULL-5533 Admin authentication access points
OBMFULL-5534 Configure CRaSH domain