ssa.c: Moved initialization of update_waiting flag in ssa_access_handler

to be consistent with flag initialization in the other threads

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: Cosmetic change

Changed some commented out code to #if 0'd code

Signed-off-by: Hal Rosenstock <hal@mellanox.com>