1. What is the problem
Security group rule deletion is supported but missing
in release notes.
2. What is the solution to the problem
Add security group rule deletion support in release notes.
3. What the features need to be implemented to the Tricircle
N/A
Change-Id: I95d6c23af71e3edd068a99d4ed1b1ec4b1dfe98d
Signed-off-by: joehuang <joehuang@huawei.com>