btrfs-progs: docs: remove mentions of btrfs-debug-tree, btrfs-show-super, btrfs-zero-log

The standalone tools have been deprecated and removed in 2018 and nobody
should miss them.

Signed-off-by: David Sterba <dsterba@suse.com>

Documentation/btrfs-inspect-internal.rst

@@ -18,8 +18,6 @@ SUBCOMMAND
 ----------
 
 dump-super [options] <device> [device...]
-        (replaces the standalone tool **btrfs-show-super**)
-
         Show btrfs superblock information stored on given devices in textual form.
         By default the first superblock is printed, more details about all copies or
         additional backup data can be printed.
@@ -62,8 +60,6 @@ dump-super [options] <device> [device...]
                 *--force*
 
 dump-tree [options] <device> [device...]
-        (replaces the standalone tool **btrfs-debug-tree**)
-
         Dump tree structures from a given device in textual form, expand keys to human
         readable equivalents where possible.
         This is useful for analyzing filesystem state or inconsistencies and has

Documentation/btrfs.rst

@@ -150,17 +150,6 @@ btrfs-select-super
 btrfs-find-root
         rescue helper to find tree roots in a filesystem
 
-Deprecated and obsolete tools:
-
-btrfs-debug-tree
-        moved to **btrfs inspect-internal dump-tree**. Removed from
-        source distribution.
-btrfs-show-super
-        moved to **btrfs inspect-internal dump-super**, standalone
-        removed.
-btrfs-zero-log
-        moved to **btrfs rescue zero-log**, standalone removed.
-
 For space-constrained environments, it's possible to build a single binary with
 functionality of several standalone tools. This is following the concept of
 busybox where the file name selects the functionality. This works for symlinks