Simplify skip_duplicate_validation description

Trim the trailing scope qualifier from the property description.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: dan0505

descriptions/0/api.intercom.io.yaml

@@ -34277,8 +34277,7 @@ components:
         skip_duplicate_validation:
           type: boolean
           description: Set to `true` to merge two contacts that are not duplicates
-            (they share no matching email or phone). Has no effect on API versions
-            that do not enforce duplicate validation on merge.
+            (they share no matching email or phone).
           example: true
     merge_conversations_request:
       title: Merge Conversations Request