Clean-up unused feature data

Clean-up unused feature data

[Issue#] N/A
[Problem] N/A
[Cause] N/A
[Solution] Current WRT uses Privilege instead of Feature
Deprecated :
Parser for feature (FeatureParser, ParamParser, OnFeatureElement())
param and required field
[SCMRequest] N/A

Change-Id: I1936b0bff216bc501c8db6a40eff2baef87c794e