chore(merge-tree sequence): misc cleanup

[connorskees]

Misc cleanup tasks for merge-tree and sequence. See the commits for a breakdown of the changes.

Potentially controversially, this PR deletes the sequence testFarm. As far as I can tell, this file is never actually executed. I am interested to know if that's not the case.

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +209 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	441.95 KB	442.01 KB	⯅ +70 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	237.29 KB	237.29 KB	■ No change
loader.js	148.39 KB	148.39 KB	■ No change
map.js	48.43 KB	48.43 KB	■ No change
matrix.js	140.32 KB	140.39 KB	⯅ +70 Bytes
odspDriver.js	90.46 KB	90.46 KB	■ No change
odspPrefetchSnapshot.js	42.13 KB	42.13 KB	■ No change
sharedString.js	160.87 KB	160.94 KB	⯅ +69 Bytes
sharedTree2.js	258.88 KB	258.88 KB	■ No change
Total Size	1.67 MB	1.67 MB	⯅ +209 Bytes

---

Baseline commit: 7fde01a

Generated by 🚫 dangerJS against 6a0ef02

[github-actions]

This PR is ready to merge! Please review it and squash merge into next: @sonalideshpandemsft @tylerbutler @scottn12

[tylerbutler]

@connorskees Looks like there are some merge conflicts now (maybe because I merged another PR in?). Once resolved let me know and I'll hit the button.