feat: remove lz compression

[pauldambra]

We've wanted to remove LZ compression for c2 years. #155

it is 5%+ of the bundle size.

Let's remove it

Needs data from PostHog/posthog#15765 to confirm that we don't receive LZ compressed traffic (a quick check of 1 day of nginx logs suggested we don't)

compression options are provided by decide, decide returns a harcoded list, and the library prefers gzip if it is present. So this can only negatively affect people using very, very old self-hosted versions and the latest pothog-js. And even then it would mean they would switch from lz64 to base64 so things would carry on working.

[github-actions]

Size Change: -19 kB (-1%)

Total Size: 2.33 MB

Filename	Size	Change
dist/array.full.js	164 kB	-4.75 kB (-3%)
dist/array.js	105 kB	-4.74 kB (-4%)
dist/es.js	105 kB	-4.74 kB (-4%)
dist/module.js	105 kB	-4.81 kB (-4%)

ℹ️ View Unchanged

Filename	Size
dist/recorder-v2.js	93.6 kB
dist/recorder.js	58.3 kB
lib/rrweb/dist/plugins/console-record.js	26.6 kB
lib/rrweb/dist/plugins/console-record.min.js	10.8 kB
lib/rrweb/dist/plugins/console-replay.js	12.7 kB
lib/rrweb/dist/plugins/console-replay.min.js	5.72 kB
lib/rrweb/dist/plugins/sequential-id-record.js	910 B
lib/rrweb/dist/plugins/sequential-id-record.min.js	417 B
lib/rrweb/dist/plugins/sequential-id-replay.js	1.24 kB
lib/rrweb/dist/plugins/sequential-id-replay.min.js	578 B
lib/rrweb/dist/record/rrweb-record-pack.js	31.4 kB
lib/rrweb/dist/record/rrweb-record-pack.min.js	10.7 kB
lib/rrweb/dist/record/rrweb-record.js	140 kB
lib/rrweb/dist/record/rrweb-record.min.js	51.7 kB
lib/rrweb/dist/replay/rrweb-replay-unpack.js	188 kB
lib/rrweb/dist/replay/rrweb-replay-unpack.min.js	71.1 kB
lib/rrweb/dist/replay/rrweb-replay.js	172 kB
lib/rrweb/dist/replay/rrweb-replay.min.js	66.4 kB
lib/rrweb/dist/rrweb-all.js	356 kB
lib/rrweb/dist/rrweb-all.min.js	133 kB
lib/rrweb/dist/rrweb.js	302 kB
lib/rrweb/dist/rrweb.min.js	116 kB
lib/rrweb/es/rrweb/ext/base64-arraybuffer/dist/base64-arraybuffer.es5.js	1.94 kB
lib/rrweb/es/rrweb/ext/mitt/dist/mitt.es.js	1.99 kB

_{compressed-size-action}

[pauldambra]

With two days of data searched using floor(rate(ingestion_lz64_compressed_event_total{role="events"}[$__rate_interval])) we have no results (floor because prom reports values like 0.1 because computers)

Also a query like {container="posthog-events"} |= <WSGIRequest |= compression=lz finds no results and {container="posthog-events"} |= <WSGIRequest |= compression=gzip finds lots

[benjackwhite]

Let's do it