Cleanup some very old information

Author: eseliger

docs/cody/enterprise/features.mdx

@@ -92,10 +92,6 @@ If you want to include recent changes that haven't been indexed in your Sourcegr
 
 ## Prompt pre-instructions
 
-<Callout type="info">
-	Prompt pre-instructions is supported for Sourcegraph `v5.10` and more.
-</Callout>
-
 **Site admins** can add and configure prompt pre-instructions for Cody. These are text instructions that Cody uses with every chat query, allowing organizations to configure how Cody responds to their users.
 
 For example, if you don’t want Cody to answer questions relating to sensitive non-code matters, you can pre-instruct Cody about it. In this case, if a user asks an unrelated question, Cody responds with a pre-instructed context.

docs/cody/enterprise/model-configuration.mdx

@@ -7,7 +7,7 @@
 
 <Callout type="note">
 	`modelConfiguration` is the recommended way to configure chat and
-	autocomplete models in Sourcegraph `v5.6.0` and later.
+	autocomplete models.
 </Callout>
 
 The `modelConfiguration` field in the **Site config** section allows you to configure Cody to use different LLM models for chat and autocomplete, enabling greater flexibility in selecting the best model for your needs.

docs/cody/faq.mdx

@@ -70,10 +70,6 @@ Cody's response quality on a programming language depends on many factors, inclu
 
 Cody Chat is optimized for coding related use cases and can be used primarily for reviewing, analysis, testing, writing, and editing of software code. Use of Cody for any other purposes is against our [acceptable use policy](https://sourcegraph.com/terms/aup) and may result in your account being restricted.
 
-### What happened to the Cody App?
-
-We’ve deprecated the Cody App to streamline the experience. The Cody App is no longer available for download.
-
 ## Embeddings
 
 ### Why were embeddings removed once my instance was upgraded to v5.3?

src/data/navigation.ts

@@ -243,7 +243,7 @@ export const navigation: NavigationItem[] = [
 							},
 							{
 								title: 'Enterprise Architecture',
-								href: '/cody/core-concepts/enterprise-architecture'
+								href: '/admin/architecture#cody'
 							}
 						]
 					},