Add unused baselines

Signed-off-by: Leo Elmecker <lelmeckerpla@bloomberg.net>

Author: leoelm

tests/baselines/reference/acceptSymbolAsWeakType.types

@@ -95,7 +95,6 @@ f.register(s, null);
 >f : FinalizationRegistry<unknown>
 >register : (target: WeakKey, heldValue: unknown, unregisterToken?: WeakKey | undefined) => void
 >s : symbol
->null : null
 
 f.unregister(s);
 >f.unregister(s) : void

tests/baselines/reference/dissallowSymbolAsWeakType.types

@@ -95,7 +95,6 @@ f.register(s, null);
 >f : FinalizationRegistry<unknown>
 >register : (target: object, heldValue: unknown, unregisterToken?: object) => void
 >s : symbol
->null : null
 
 f.unregister(s);
 >f.unregister(s) : void