Make having unused fields or formal params a PMD error Change-Id: Ief1c8e499af7e3a43328046dc140ba941d8cb010 Depends-On: I970b49db0abac46d15a11e2b71dc0b50bd3a8faf Reviewed-on: http://gerrit.dmdirc.com/2034 Reviewed-by: Greg Holmes <greg@dmdirc.com> Automatic-Compile: DMDirc Build Manager