refactor save_keyword_policy and list_keyword_policy to be just save and list...

refactor save_keyword_policy and list_keyword_policy to be just save and list as they are already under KeywordPolicy module
4 jobs for keyword_policy/mgmt_api in 3 minutes and 8 seconds (queued for 3 seconds)
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passed #23580
build

00:00:40

 
  Test
passed #23583
analysis

00:00:51

passed #23582
lint

00:00:42

passed #23581
unit-testing

00:02:27