Remove unused variable in ts transform

[jakebailey]

Noticed while reviewing a different PR that currentClassHasParameterProperties is only ever written to.

[rbuckton]

@typescript-bot: pack this

[typescript-bot]

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
pack this	✅ Started	✅ Results

[typescript-bot]

Hey @rbuckton, I've packed this into an installable tgz. You can install it for testing by referencing it in your package.json like so:

{
    "devDependencies": {
        "typescript": "https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/163189/artifacts?artifactName=tgz&fileId=FC5192397BC86E6DC972A82ACED2969E9B2980937C9B345E9F2FFAEF267A23D202&fileName=/typescript-5.6.0-insiders.20240808.tgz"
    }
}

and then running npm install.

---

There is also a playground for this build and an npm module you can use via "typescript": "npm:@typescript-deploys/pr-build@5.6.0-pr-59467-2".;