fix: Updated description for AIServices deployment (Azure#3096)

## Description

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Fixes Azure#123
Fixes Azure#456
Closes Azure#123
Closes Azure#456
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## Pipeline Reference

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## Type of Change

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- [ ] Update to CI Environment or utilities (Non-module affecting
changes)
- [x] 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`.
  - [ ] 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.
- [ ] My corresponding pipelines / checks run clean and green without
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avm/res/cognitive-services/account/README.md

@@ -153,13 +153,7 @@ module account 'br/public:avm/res/cognitive-services/account:<version>' = {
 
 ### Example 2: _Using `AIServices` with `deployments` in parameter set_
 
-This instance deploys the module with the AI model deployment feature.'
-
-Note, this test is temporarily disabled as it needs to be enabled on the subscription.
-As we don't want other contributions from being blocked by this, we disabled the test for now / rely on a manual execution outside the CI environemnt
-You can find more information here: https://learn.microsoft.com/en-us/legal/cognitive-services/openai/limited-access
-And register here: https://aka.ms/oai/access
-
+This instance deploys the module with the AI model deployment feature.
 
 
 <details>

avm/res/cognitive-services/account/tests/e2e/ai-model-deployment/main.test.bicep

@@ -1,14 +1,7 @@
 targetScope = 'subscription'
 
 metadata name = 'Using `AIServices` with `deployments` in parameter set'
-metadata description = '''
-This instance deploys the module with the AI model deployment feature.'
-
-Note, this test is temporarily disabled as it needs to be enabled on the subscription.
-As we don't want other contributions from being blocked by this, we disabled the test for now / rely on a manual execution outside the CI environemnt
-You can find more information here: https://learn.microsoft.com/en-us/legal/cognitive-services/openai/limited-access
-And register here: https://aka.ms/oai/access
-'''
+metadata description = 'This instance deploys the module with the AI model deployment feature.'
 
 // ========== //
 // Parameters //