[PATCH] fsck doc: remove ancient out-of-date diagnostics

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Remove diagnostics that haven't been emitted by "fsck" or its
predecessors for around 15 years. This documentation was added in
c64b9b88605 (Reference documentation for the core git commands.,
2005-05-05), but was out-of-date quickly after that.

Notes on individual diagnostics:

 - "expect dangling commits": Added in bcee6fd8e71 (Make 'fsck' able
   to[...], 2005-04-13), documented in c64b9b88605. Not emitted since
   1024932f019 (fsck-cache: walk the 'refs' directory[...],
   2005-05-18).

 - "missing sha1 directory": Added in 20222118ae4 (Add first cut at
   "fsck-cache"[...], 2005-04-08), documented in c64b9b88605. Not
   emitted since 230f13225df (Create object subdirectories on demand,
   2005-10-08).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 Documentation/git-fsck.txt | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/Documentation/git-fsck.txt b/Documentation/git-fsck.txt
index d72d15be5b..bd596619c0 100644
--- a/Documentation/git-fsck.txt
+++ b/Documentation/git-fsck.txt
@@ -129,14 +129,6 @@ using 'git commit-graph verify'. See linkgit:git-commit-graph[1].
 Extracted Diagnostics
 ---------------------
 
-expect dangling commits - potential heads - due to lack of head information::
-	You haven't specified any nodes as heads so it won't be
-	possible to differentiate between un-parented commits and
-	root nodes.
-
-missing sha1 directory '<dir>'::
-	The directory holding the sha1 objects is missing.
-
 unreachable <type> <object>::
 	The <type> object <object>, isn't actually referred to directly
 	or indirectly in any of the trees or commits seen. This can
-- 
2.29.2.222.g5d2a92d10f8