Removes Include configuration values

[jbilbo]

Since 0.57 Include overwrites the hardcoded defaults. All values here are already included in the defaults, so no point in defining them here anymore.

Also:

• SpaceInsideHashLiteralBraces now belongs to Layout instead of Style
• Disable new added cop Style/AccessModifierDeclarations. We use inline declarations (private :foo :bar) as default in our codebase.

[cwrw]

I don't think we should disable this, we can choose the enforced style: https://www.rubydoc.info/gems/rubocop/RuboCop/Cop/Style/AccessModifierDeclarations

[jbilbo]

I've disabled it because I think this cop needs more work. I wouldn't encourage declarations like:

class Foo

  private def bar; end
  private def baz; end

end

but at the same time, we're using another type of inline declarations that the cop puts all in the same bag like:

class Client
  attr_reader :uri
  private :uri
end

There's an ongoing discussion about this right now, also affecting other methods like module_function:

rubocop/rubocop#5953
rubocop/rubocop#6032

That's why I think it's better to disable this cop for now.