remove obsolete reference

Author: Nyan11

src/Toplo-Serialization-Stash/TToCheckable.extension.st

@@ -5,12 +5,8 @@ TToCheckable >> stashAccessorsForTToCheckable [
 
 	<stashAccessors>
 	| settersAndGetters |
-	self class == ToTab ifTrue: [ ^ {  } ].
 	self isCheckable ifFalse: [ ^ {  } ].
-	
 	settersAndGetters := OrderedCollection new.
-	
-	self class == ToToggleButton ifFalse: [ settersAndGetters add: #initializeCheckable onlySetOnStash ].
 	self checked ifTrue: [ settersAndGetters add: #checked ].
 	self group ifNotNil: [ settersAndGetters add: #group ].
 	^ settersAndGetters