Remove UnusedModifier,etc. from pmd rule
Remove UnusedModifier,etc. from pmd rule

- Remove UnusedModifier from pmd rule to allow explicit "public" modifier
  to be there on interface definition
- Remove LoosePackageCoupling which was emitting warning message.

Change-Id: I949074486cba0850871e0b1c490c64c036bb381c

opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open