Delete some old directory downloading code

This was needed to add kyua to the disk image, but since it is part of
FreeBSD base now, we no longer need it.

Author: arichardson

pycheribuild/projects/disk_image.py

@@ -248,27 +248,6 @@ def create_file_for_image(self, path_in_image: str, *, contents: str = "\n", sho
             self.write_file(target_file, contents, never_print_cmd=True, overwrite=False, mode=mode)
         self.add_file_to_image(target_file, base_directory=base_dir)
 
-    def _wget_fetch(self, what, where):
-        # https://apple.stackexchange.com/a/100573/251654
-        # https://www.gnu.org/software/wget/manual/html_node/Directory-Options.html
-        wget_cmd = ["wget", "--no-host-directories", "--cut-dirs=3",  # strip prefix
-                    "--timestamping", "-r", "--level", "inf", "--no-parent",  # recursive but ignore parents
-                    "--convert-links", "--execute=robots = off",
-                    # ignore robots.txt files, don't download robots.txt files"
-                    "--no-verbose",
-                    ]
-        self.run_cmd(wget_cmd + what, cwd=where)
-
-    def _wget_fetch_dir(self, what, where):
-        if self.wget_via_tmp:
-            with tempfile.TemporaryDirectory(prefix="cheribuild-wget-") as td:
-                # Speed things up by using whatever we've got locally, too
-                self.run_cmd("rsync", "-avvP", str(where) + "/.", td + "/.")
-                self._wget_fetch(what, td)
-                self.run_cmd("rsync", "-avvP", "--no-times", "--delete", td + "/.", str(where) + "/.")
-        else:
-            self._wget_fetch(what, where)
-
     def prepare_rootfs(self):
         assert self.tmpdir is not None
         assert self.manifest_file is not None