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
As this changes, "param" isn't used in the source code.
Deprecated :
ConfigParserData::Param
required field in the feature data struct
unused function (getResourceAttribute, getFeatureParams)
unused typedef (WidgetParamMap, WidgetParamKey, WidgetParamValue)
remove Test case
[SCMRequest] N/A

Change-Id: I9eeb80844bf55af31c3c4417b5a1124714aa0a82