Update dynamic-variables.mdx

Author: elizabethtrykin

fern/assistants/dynamic-variables.mdx

@@ -20,16 +20,6 @@ For example, set the assistant's first message to "Hello, `{{name}}`!" and assig
 }
 ```
 
-<Aside>
-    <CodeBlock>
-        ```json
-        {
-            "your": "custom payload"
-        }
-        ```
-    </CodeBlock>
-</Aside>
-
 
 ## Using dynamic variables in a phone call
 
@@ -71,10 +61,6 @@ For example, set the assistant's first message to "Hello, `{{name}}`!" and assig
 
 </Steps>
 
-<Aside>
-    <EndpointRequestSnippet endpoint='POST /assistant' />
-</Aside>
-
 <Note>
   Ensure `{{variableName}}` is included in all prompts where needed.
 </Note>