chore: heartbeat code removed (appsmithorg#36837)

## Description
> [!TIP]  
> _Add a TL;DR when the description is longer than 500 words or
extremely technical (helps the content, marketing, and DevRel team)._
>
> _Please also include relevant motivation and context. List any
dependencies that are required for this change. Add links to Notion,
Figma or any other documents that might be relevant to the PR._


Fixes #`Issue Number`  
_or_  
Fixes `Issue URL`
> [!WARNING]  
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._

## Automation

/ok-to-test tags="@tag.All"

### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results  -->
> [!TIP]
> 🟢 🟢 🟢 All cypress tests have passed! 🎉 🎉 🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/11339670501>
> Commit: cc4ac6d
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=11339670501&attempt=3"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.All`
> Spec:
> <hr>Tue, 15 Oct 2024 07:53:17 UTC
<!-- end of auto-generated comment: Cypress test results  -->


## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
	- Integrated New Relic for enhanced telemetry tracking.
  
- **Bug Fixes**
- Removed the `Heartbeat` component to streamline application
performance and rendering logic.

- **Chores**
	- Cleaned up unnecessary variables related to component rendering.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

app/client/src/index.tsx

@@ -30,7 +30,6 @@ import { PageViewTiming } from "@newrelic/browser-agent/features/page_view_timin
 import { PageViewEvent } from "@newrelic/browser-agent/features/page_view_event";
 import { Agent } from "@newrelic/browser-agent/loaders/agent";
 import { getCommonTelemetryAttributes } from "UITelemetry/generateTraces";
-import Heartbeat from "Heartbeat";
 const { newRelic } = getAppsmithConfigs();
 const { enableNewRelic } = newRelic;
 
@@ -73,12 +72,8 @@ if (enableNewRelic) {
   newRelicBrowserAgent.setCustomAttribute("appMode", appMode);
 }
 
-const { cloudHosting } = getAppsmithConfigs();
-
 const shouldAutoFreeze = process.env.NODE_ENV === "development";
 
-const isProduction = process.env.NODE_ENV === "production";
-
 setAutoFreeze(shouldAutoFreeze);
 runSagaMiddleware();
 
@@ -100,7 +95,6 @@ function App() {
     <Sentry.ErrorBoundary fallback={"An error has occured"}>
       <Provider store={store}>
         <LayersContext.Provider value={Layers}>
-          {cloudHosting && isProduction && <Heartbeat />}
           <ThemedAppWithProps />
         </LayersContext.Provider>
       </Provider>