Delete showSpace: in BlElement and BlSpace?

[tinchodias]

There are 2 implementors of showSpace: but zero senders. I have not only Bloc and Toplo loaded, also Pyramid and other projects loaded in my image.

Implementor in BlSpace:

showSpace: aSpace
	"I show a given space either inside of me or let it open by default"
	aSpace show

In BlElement:

showSpace: aSpace
	self hasParent
		ifTrue: [ self parent showSpace: aSpace ]
		ifFalse: [
			self isAttachedToSceneGraph
				ifTrue: [ self space showSpace: aSpace ]
				ifFalse: [ aSpace show ] ]

It seems the intention is to support a scenario of inner vs independent windows, via hooks (overriding one of such implementors).

Do you have an opinion @plantec ?