remove links and mentions to metrics beta product (#11231)

Author: vivianyentran

docs/cli/metrics.mdx

@@ -2,7 +2,11 @@
 title: "Metrics"
 sidebar_order: 5
 description: "Learn how Sentry's command line interface can be used for sending metrics."
+sidebar_hidden: true
 ---
+
+<Include name="metrics-api-change.mdx" />
+
 Metrics help you track and visualize the data points you care about, making it easier to monitor your application's health and identify issues.
 Learn more about [Metrics](/product/explore/metrics).
 

docs/product/alerts/create-alerts/metric-alert-config.mdx

@@ -93,7 +93,6 @@ Add filters in the provided input to narrow down what you'll be alerted about, s
 
 - For **error** events, all error properties are available. See [Searchable Properties](/concepts/search/searchable-properties/events/#searchable-properties) for a full list.
 - For **transaction** events, the following basic properties are generally available: `release`, `transaction`, `transaction.status`, `transaction.op`, `http.method`, `http.status_code`, `os.name`, `browser.name`, and `geo.country_code`.
-- For **metrics**, all [Metric tags](/product/explore/metrics/#augmenting-metrics-with-tags) are available.
 
 #### Advanced filters for Transactions
 

docs/product/dashboards/index.mdx

@@ -18,9 +18,9 @@ If you’d like to edit the default dashboard or build out multiple ones, each w
 
 ![Widgets visualizing key page performance, Web Vitals, and user misery.](./img/dashboard-custom.png)
 
-## Open Dashboard Widgets in Discover, Issues, and Metrics
+## Open Dashboard Widgets in Discover and Issues
 
-Each <SandboxLink scenario="dashboards" projectSlug="react">Dashboard</SandboxLink> widget has an ellipsis that opens a context menu. From here, depending on the type of data the widget shows, you can open the widget in [Discover](/product/explore/discover-queries/), [Issues](/product/issues/), or [Metrics](/product/explore/metrics/) to get more information.
+Each <SandboxLink scenario="dashboards" projectSlug="react">Dashboard</SandboxLink> widget has an ellipsis that opens a context menu. From here, depending on the type of data the widget shows, you can open the widget in [Discover](/product/explore/discover-queries/) or [Issues](/product/issues/) to get more information.
 
 ## Widget Viewer
 

docs/product/index.mdx

@@ -46,9 +46,6 @@ Giving Sentry visibility into your [**releases**](/product/releases/) makes it p
 
 Releases are integrated with the rest of Sentry so you can directly see how an error or performance issue was affected by a release, in addition to being able to resolve release-specific issues.
 
-### Metrics
-You can manually send custom [**Metrics**](/product/metrics/) to Sentry to help you track and visualize the data points that matter most to you and your team. Metrics fit seamlessly into the Sentry workflow, so you can correlate them back to traces, set up alerts for when they cross a threshold, and link them to issues to help you debug faster.
-
 ### LLM Monitoring
 
 Our [**LLM Monitoring**](/product/insights/llm-monitoring/) feature gives you insights into your AI pipelines within the broader context of your app. When you `pip install sentry` into a project that's also using an AI provider like OpenAI, Sentry will automatically pick up useful metrics like token usage, prompts, and model IDs, and send them to our LLM Monitoring dashboard.

docs/product/performance/metrics.mdx

@@ -4,12 +4,6 @@ sidebar_order: 110
 description: "Learn more about Sentry's Performance metrics such as Apdex, failure rate, throughput, and latency, and the user experience insights about your application that they provide."
 ---
 
-<Note>
-
-If you are looking to try out custom metrics (currently in beta), you can learn more [here](/product/explore/metrics/)
-
-</Note>
-
 Metrics provide insight about how users are experiencing your application. In [Performance](/product/performance/), we'll set you up with a few of the basic metrics to get you started. For further customizations on target thresholds, feel free to build out a query using the Discover [Query Builder](/product/explore/discover-queries/query-builder/). By identifying useful thresholds to measure your application, you have a quantifiable measurement of your application's health. This means you can more easily identify when errors occur or if performance issues are emerging.
 
 ## Apdex