fix: Remove menu item for outdated tutorials list

[larseggert]

Fixes #6473

[codecov]

Codecov Report

Merging #6521 (f091e91) into main (f6a2d8c) will increase coverage by 0.13%.
Report is 31 commits behind head on main.
The diff coverage is 95.83%.

@@            Coverage Diff             @@
##             main    #6521      +/-   ##
==========================================
+ Coverage   88.70%   88.84%   +0.13%     
==========================================
  Files         290      285       -5     
  Lines       40440    40308     -132     
==========================================
- Hits        35874    35812      -62     
+ Misses       4566     4496      -70     

Files	Coverage Δ
ietf/doc/views_conflict_review.py	97.05% <100.00%> (-0.07%)	⬇️
ietf/secr/urls.py	100.00% <ø> (ø)
ietf/submit/parsers/base.py	96.72% <100.00%> (+1.56%)	⬆️
ietf/submit/parsers/xml_parser.py	100.00% <ø> (ø)
ietf/utils/xmldraft.py	93.18% <100.00%> (+0.26%)	⬆️
ietf/submit/forms.py	79.10% <80.00%> (+0.07%)	⬆️
ietf/submit/parsers/plain_parser.py	92.85% <91.66%> (+0.70%)	⬆️

... and 2 files with indirect coverage changes