remove `inferredObservability` export const from compiled JSX output

[thescientist13]

Current State

Part of the setup for opting-in to JSX + Signals, is to add this line to your custom element definition file
https://wcc.dev/docs/#inferred-attribute-observability

export const inferredObservability = true;

But this isn't needed at runtime as part of the compiled output

Desired State

In jsx-loader.js, we should removed this line / node from the output.

Additional Context

No response