Double  free of OCServerRequest
Double  free of OCServerRequest

OCServerRequest was deleted once in SendListObserverNotification and HandleSingleResponse.

Change-Id: I2964a6a65d760369afaf3e1325eae825d4ce3345
Signed-off-by: Habib Virji <40be98b50fb6c4d79bd282a617e2cc82e300d47f@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/15503
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Uze Choi <3a26c91d8a4a3c9e246e43339f4782bb2483aece@samsung.com>
Reviewed-by: Ziran Sun <3baa2a3e3c6d96dba4b6f1736d53815847db9a07@samsung.com>

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