docs: clarify use of unsubscribe with HttpClient

Bob Watson · Bob Watson · commit 4569f9ffb44b · 2022-08-11T13:57:55.000-07:00
fix: #46542
diff --git a/aio/content/guide/http.md b/aio/content/guide/http.md
@@ -120,7 +120,7 @@ This is true for *all* `HttpClient` *methods*.
 
 <div class="alert is-helpful">
 
-The [`AsyncPipe`](api/common/AsyncPipe) subscribes and unsubscribes for you automatically.
+You should always unsubscribe from an observable when a component is destroyed.
 
 </div>
 
