Remove some old code related to supporting legacy browsers

[Jakeii]

What does this change?

Removes the $$ module, it doesn't provide any utility these days.
Delete an old polyfill for passive event listeners, browser support is now at >97% so safe to get rid?

Quite sure article-aside-adverts.ts could be deleted also, but have carded up to check on that.

Why?

Less/tidier code.

[changeset-bot]

⚠️ No Changeset found

Latest commit: a81997d

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[github-actions]

Deploy build 2849 of dotcom::commercial-bundle to CODE

All deployment options

• Deploy build 2849 of dotcom::commercial-bundle to CODE
• Deploy parts of build 2849 to CODE by previewing it first
• What's on CODE right now?

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From guardian/actions-riff-raff.

[github-actions]

Ad load time test results

For consented, top-above-nav took on average 4081ms to load.
For consentless, top-above-nav took on average 2751ms to load.

Test conditions:

• 5mbps download speed
• 1.5mbps upload speed
• 150ms latency

[arelra]

Nice! 📉