Remove ECH from main tutorial

Author: theletterf

solutions/observability/get-started.md

@@ -18,7 +18,7 @@ New to Elastic {{observability}}? Discover more about our observability features
 
 ## Get started with your use case [get-started-with-use-case]
 
-Learn how to spin up a deployment on {{ech}} or create an {{obs-serverless}} project and use Elastic {{observability}} to gain deeper insight into the behavior of your applications and systems.
+Learn how to create an {{obs-serverless}} project and use Elastic {{observability}} to gain deeper insight into the behavior of your applications and systems.
 
 :::::::{stepper}