chore: fix build warnings from the v4.34.0 bump

[zhikaip]

Fixes the 13 warnings that remain on master after the v4.34.0 bump (#1661). No statements change.

• List.tfae_cons_self is deprecated. equationOfMotion_tfae in
  ClassicalMechanics/HarmonicOscillator/Basic.lean and
  ClassicalMechanics/Pendulum/SimplePendulum/Hamiltonian.lean now uses
  List.tfae_cons_of_mem with List.mem_cons_self.
• eq_neg_curl_of_div_zero in SpaceAndTime/Space/Derivatives/Curl.lean: removed four unused
  simp only arguments.
• peel is deprecated. In QuantumInfo/ForMathlib, Filter.lean and LimSupInf.lean now use
  filter_upwards, and Matrix.lean (PosSemidef.rsmul) uses intro.

CI doesn't show these warnings because lake build restores unchanged modules from Lake's
artifact cache without recompiling them. I found them by compiling every module with
lake env lean. After this PR, all six edited files compile without warnings.

Disclaimer: noticed some warnings while building that I think the version bump missed, asked
Claude to check for any build warning messages throughout Physlib, changes look reasonable.

🤖 Generated with Claude Code

[github-actions]

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[morrison-daniel]

LGTM