Tests: Remove 'sleep' from the test case

Change-Id: Iaff2076b0ef7f69a6ba6efd4123271bde490977a
BUG: 873962
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/4498
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>