This is inserted by the RevisionSlider extension, but despite being injected on the server-side, it doesn't actually work by itself, and doesn't even have a fallback when clicked as-is. The anchor link lack a "href" attribute.
A good fallback would be linking to the diff page, but RTRC does that already, so I suggest we just hide it. Browsing the history isn't a likely usecase within the context of explictly reviewing a single diff on its own merits, which is what RTRC does in this context.
This is inserted by the RevisionSlider extension, but despite being injected on the server-side, it doesn't actually work by itself, and doesn't even have a fallback when clicked as-is. The anchor link lack a "href" attribute.
A good fallback would be linking to the diff page, but RTRC does that already, so I suggest we just hide it. Browsing the history isn't a likely usecase within the context of explictly reviewing a single diff on its own merits, which is what RTRC does in this context.