remove default test suite

It does nothing, and will be replaced with RSpec testing.
style: StringLiterals
style: Encoding
style: AlignParameters
style: LeadingCommentSpace, CommentAnnotation
style: RedundantBegin
style: SpaceAroundBlockBraces, SpecialGlobalVars, spacing
test style via rubocop

Add control file with the rules (cops) that we have purposely
overridden with this project's current values.