update elicitation schema language

Author: bhosmer-ant

docs/specification/draft/client/elicitation.mdx

@@ -12,7 +12,7 @@ The Model Context Protocol (MCP) provides a standardized way for servers to requ
 information from users through the client during interactions. This flow allows clients to
 maintain control over user interactions and data sharing while enabling servers to gather
 necessary information dynamically.
-Servers can request structured data from users with optional JSON schemas to validate responses.
+Servers request structured data from users with JSON schemas to validate responses.
 
 ## User Interaction Model