Remove JS example from product page

Author: Alex Krawiec

docs/product/explore/metrics/getting-started/index.mdx

@@ -323,20 +323,7 @@ Use descriptive, dot-separated names that indicate the metric's purpose:
 
 ### Attributes
 
-Add attributes for any dimension you want to group or filter by:
-
-```javascript
-Sentry.metrics.count("api.request", 1, {
-  attributes: {
-    endpoint: "/users",
-    method: "GET",
-    status: "200",
-    region: "us-west",
-  },
-});
-```
-
-This allows you to query metrics like:
+Add attributes to to query metrics like:
 
 - `sum(api.request)` grouped by `endpoint`
 - `sum(api.request)` where `status:500`