[FFI] Prevent regress_47594_test from starting the VM Service

Fixes: #60500
Change-Id: I5d0d155a3ad0fa55cb9cffcf6cc929bd112dfaf5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/421380
Reviewed-by: Daco Harkes <[email protected]>
Commit-Queue: Daco Harkes <[email protected]>
Commit-Queue: Derek Xu <[email protected]>

Author: derekxu16

tests/ffi/regress_47594_test.dart

@@ -6,7 +6,7 @@
 // FFI leaf calls did not mark the thread for the transition and would cause
 // the stack walker to segfault when it was unable to interpret the frame.
 //
-// VMOptions=--deterministic --enable-vm-service=0 --profiler --disable-dart-dev
+// VMOptions=--deterministic --profiler --disable-dart-dev
 
 import 'dart:ffi';