texpresso: fix nextonic symlink

[MattSturgeon]

Remove the broken nextonic symlink in the texpresso-tonic package. Fixes build failure, due to new symlink checking added in #370750.

We could create a fixed symlink, but TBH I don't think there's any value in the nextonic alias, especially given the texpresso-tonic package can't be directly installed... AFAICT it is only ever available within texpresso's private PATH?

If we did want to keep the alias, we'd just add this to postInstall:

ln -s $out/bin/texpresso-tonic $out/bin/nextonic

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• Tested, as applicable:
  • package tests
  • nix-build -A texpresso
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

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[MattSturgeon]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 381454

---

x86_64-linux

✅ 1 package built:

• texpresso

[GaetanLepage]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 381454

---

x86_64-linux

✅ 1 package built:

• texpresso

---

aarch64-linux

✅ 1 package built:

• texpresso

---

x86_64-darwin

✅ 1 package built:

• texpresso

---

aarch64-darwin

✅ 1 package built:

• texpresso

[GaetanLepage]

Thanks!