webadmin: Fix remove bricks confirmation message

Changed the hash name to not add the remove message template.
And updated the confirmation message for replicate volumes
to make it uniform.

Change-Id: Id931875d12aeb0acb646702c84bb3c07344eaa33
Bug-Url: https://bugzilla.redhat.com/893947
Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>