ReleaseNotes: keep only latest BusyBox update note

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

ReleaseNotes.md

@@ -41,7 +41,6 @@ This package contains software from a number of other projects including Bash, z
 * The XP-compatibility layer emulating pthreads (which is [no longer needed](https://git-for-windows.github.io/requirements.html)) [was dropped in favor of modern Windows threading APIs](https://github.com/git-for-windows/git/pull/1214); This should make threaded operations slightly faster and more robust.
 * On Windows, UNC paths can [now be accessed via `file://host/share/repo.git`-style paths](https://github.com/git-for-windows/git/commit/a352941117bc8d00dfddd7a594adf095d084d844).
 * Comes with [the new custom Git command `git update`](https://github.com/git-for-windows/build-extra/pull/151) to help keeping Git up-to-date on your machine.
-* Comes with [BusyBox v1.28.0pre.16237.d08df3528](https://github.com/git-for-windows/busybox-w32/commit/d08df3528).
 * Comes with [BusyBox v1.28.0pre.16298.bff40f8a8](https://github.com/git-for-windows/busybox-w32/commit/bff40f8a8).
 
 ### Bug Fixes