Remove CommonJS Testing

[sonalideshpandemsft]

This PR eliminates CJS testing, resulting in nearly double the execution time for Mocha tests. This increase in time may stem from testing both cjs and esm module.

[jason-ha]

There are also esm then cjs scripts.
But we should see how this moves the overhead needle. If this group of changes is significant, then we don't need to do more. If it is not noticeable, then we know we should look at the other group.

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +154 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	514.16 KB	514.2 KB	⯅ +44 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	247.99 KB	248.01 KB	⯅ +22 Bytes
loader.js	171.3 KB	171.32 KB	⯅ +22 Bytes
map.js	46.69 KB	46.7 KB	⯅ +11 Bytes
matrix.js	148.74 KB	148.74 KB	■ No change
odspDriver.js	97.31 KB	97.33 KB	⯅ +22 Bytes
odspPrefetchSnapshot.js	42.28 KB	42.29 KB	⯅ +11 Bytes
sharedString.js	167.32 KB	167.33 KB	⯅ +11 Bytes
sharedTree.js	334.63 KB	334.63 KB	■ No change
Total Size	1.87 MB	1.87 MB	⯅ +154 Bytes

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Baseline commit: bdef6d1

Generated by 🚫 dangerJS against 9c24b2d

[sonalideshpandemsft]

There are also esm then cjs scripts. But we should see how this moves the overhead needle. If this group of changes is significant, then we don't need to do more. If it is not noticeable, then we know we should look at the other group.

I didn't find any script which esm followed by cjs. For tree dds, esm testing is skipped: https://github.com/microsoft/FluidFramework/blob/main/packages/dds/tree/package.json#L71

[jason-ha]

I was thinking of the build:test ordering. Ship it.