Don't write session's connection to NULL after freeing it.
Don't write session's connection to NULL after freeing it.

KineticSession_Destroy() is already setting it to NULL just before
freeing the session; this would be redundant AND a write-after-free.

benmcclelland/kinetic-c,rcrane/kinetic-c,benmcclelland/kinetic-c,Seagate/kinetic-c,kinjalcpatel/kinetic-c,kinjalcpatel/kinetic-c,Seagate/kinetic-c,chenchongli/kinetic-c,kinjalcpatel/kinetic-c,rcrane/kinetic-c,Kinetic/kinetic-c,benmcclelland/kinetic-c,Seagate/kinetic-c,benmcclelland/kinetic-c,Kinetic/kinetic-c,chenchongli/kinetic-c,kinjalcpatel/kinetic-c,Kinetic/kinetic-c,rcrane/kinetic-c,Kinetic/kinetic-c,rcrane/kinetic-c,Seagate/kinetic-c,benmcclelland/kinetic-c,chenchongli/kinetic-c,chenchongli/kinetic-c