Remove git-archimport from git command list

We have not supported git-archimport in many years and have removed the
files from the documentation.  Removing it from the command list ensures
that git will not generate a link to the command in the documentation.
This avoids leaving a broken link in the html docs.

git.spec

@@ -408,6 +408,9 @@ rm -rf "$gpghome" # Cleanup tmp gpg home dir
 %patch3 -p1
 %endif
 
+# Remove git-archimport from command list
+sed -i '/^git-archimport/d' command-list.txt
+
 %if %{use_prebuilt_docs}
 mkdir -p prebuilt_docs/{html,man}
 xz -dc %{SOURCE1} | tar xf - -C prebuilt_docs/html