fix: don't run 'lake update subverso' in IO example projects

The temporary project generated for an IO example does not depend on
SubVerso, so there is nothing to update. Recent versions of Lake
reject updating a package that the project does not require.

Author: david-christiansen

src/verso-manual/VersoManual/InlineLean/IO.lean

@@ -428,11 +428,6 @@ meta def check
           logErrorAt (loc (some o)) s!"Output file {f} mismatch. Got:\n{contents}"
       else Lean.logError s!"Output file {f} not found"
 
-    let out ← IO.Process.output {cmd := "lake", args := #["update", "subverso"], cwd := some dirname}
-    if out.exitCode != 0 then
-      throwError
-        m!"When running 'lake update subverso' in {dirname}, the exit code was {out.exitCode}\n" ++
-        m!"Stderr:\n{out.stderr}\n\nStdout:\n{out.stdout}\n\n"
     let jsonFile := s!"{leanCodeName}.json"
     let out ← IO.Process.output {cmd := toString «subverso-extract-mod» , args := #[leanCodeName, jsonFile], cwd := some dirname}
     if out.exitCode != 0 then