Revert "editor: Improve multi-buffer header filename click to jump to the latest selection from that buffer" (#42534)

Reverts zed-industries/zed#42480

This panics on Nightly in cases where anchor might not be valid for that
snapshot. Taking it back before the cutoff.

Release Notes:

- N/A
1fdd95a9b3Smit Barmase committed on 11/12/2025, 3:01:43 PM· committed by GitHubparent49634f6
1 file changedLine totals unavailable