[Patterns] Mention of an empty map is removed (#2971)

Author: sgrekhov

accepted/future-releases/0546-patterns/feature-specification.md

@@ -1859,9 +1859,7 @@ The context type schema for a pattern `p` is:
 
     1.  If `p` has type arguments then `K`, and `V` are those type arguments.
 
-    2.  Else if `p` has no entries, then `K` and `V` are `_`.
-
-    3.  Else `K` is `_` and `V` is the greatest lower bound of the context type
+    2.  Else `K` is `_` and `V` is the greatest lower bound of the context type
         schemas of all value subpatterns.
 
 *   **Record**: A record type schema with positional and named fields