[ FAB-6976 ] Default timeout for cluster test
[ FAB-6976 ] Default timeout for cluster test

The cluster test pre-dated the default timeout change,
and has an inconsistent value (30s). This is causing some
intermittent failures in CI, so eliminating the explicit
timeout (-o 30) and taking the new default.

Change-Id: I51652e626506e0ac0f9a3029b08fbb4a931545b9
Signed-off-by: Allen Bailey <29fe0a148da448c247e16341ea6f178eeedfc062@us.ibm.com>

saadk10/fabric-ca,saadk10/fabric-ca