sdk: do not show brackets in error.detail
sdk: do not show brackets in error.detail

engine returns can-do-action error messages with brackets

Change-Id: I0ddc46e0ae3bea73dd13e4fde02a03cf5554cc3d
Signed-off-by: Michael Pasternak <af5566a40fc9757136fd9da9ca5e2dbdd9b039eb@redhat.com>

DragonRoman/ovirt-engine-sdk,DragonRoman/ovirt-engine-sdk,DragonRoman/ovirt-engine-sdk