[dynamic_modules] Fix multiple_classes/dynamic_interfaces.yaml for vm.

Bug: #59735
Change-Id: Ie9656f257e59ad8b24dba74376a54fe9d338868b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/401281
Commit-Queue: Sigmund Cherem <[email protected]>
Auto-Submit: Nate Biggs <[email protected]>
Reviewed-by: Sigmund Cherem <[email protected]>

Author: natebiggs

pkg/dynamic_modules/test/data/multiple_classes/dynamic_interface.yaml

@@ -12,7 +12,6 @@ extendable:
 callable:
     # TODO(sigmund): This should be included by default
   - library: 'dart:core'
-    class: 'Object'
   - library: 'dart:core'
     class: 'pragma'
     member: '_'