fix: Removed orphaned file & reference (#1822)

## Description

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> Please include a summary of the change and which issue is fixed.
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Fixes #1735
Closes #1735

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## Pipeline Reference

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## Type of Change

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- [ ] Update to CI Environment or utlities (Non-module effecting
changes)
- [ ] Azure Verified Module updates:
- [ ] Bugfix containing backwards compatible bug fixes, and I have NOT
bumped the MAJOR or MINOR version in `version.json`:
- [ ] Someone has opened a bug report issue, and I have included "Closes
#{bug_report_issue_number}" in the PR description.
- [ ] The bug was found by the module author, and no one has opened an
issue to report it yet.
- [ ] Feature update backwards compatible feature updates, and I have
bumped the MINOR version in `version.json`.
- [ ] Breaking changes and I have bumped the MAJOR version in
`version.json`.
  - [x] Update to documentation

## Checklist

- [x] I'm sure there are no other open Pull Requests for the same
update/change
- [x] I have run `Set-AVMModule` locally to generate the supporting
module files.
- [x] My corresponding pipelines / checks run clean and green without
any errors or warnings

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avm/res/insights/webtest/README.md

@@ -1,10 +1,5 @@
 # Web Tests `[Microsoft.Insights/webtests]`
 
-> ⚠️THIS MODULE IS CURRENTLY ORPHANED.⚠️
-> 
-> - Only security and bug fixes are being handled by the AVM core team at present.
-> - If interested in becoming the module owner of this orphaned module (must be Microsoft FTE), please look for the related "orphaned module" GitHub issue [here](https://aka.ms/AVM/OrphanedModules)!
-
 This module deploys a Web Test.
 
 ## Navigation

avm/res/insights/webtest/main.json

@@ -5,8 +5,8 @@
  "metadata": {
  "_generator": {
  "name": "bicep",
- "version": "0.26.54.24096",
- "templateHash": "279019710662992731"
+ "version": "0.26.170.59819",
+ "templateHash": "9763185230579436305"
  },
  "name": "Web Tests",
  "description": "This module deploys a Web Test.",