[gardening] Remove deleted test from stress_test_list.json

Follow-up to https://dart-review.googlesource.com/c/sdk/+/431360.

Change-Id: I2722e116b720906c3d75c65caf13b7085d17650b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/432721
Reviewed-by: Alexander Aprelev <[email protected]>
Commit-Queue: Alexander Markov <[email protected]>
Auto-Submit: Alexander Markov <[email protected]>
Commit-Queue: Alexander Aprelev <[email protected]>

Author: alexmarkov

runtime/tests/concurrency/stress_test_list.json

@@ -3366,7 +3366,6 @@
   "../../../tests/lib/typed_data/setRange_5_test.dart",
   "../../../tests/lib/typed_data/simd_store_to_load_forward_test.dart",
   "../../../tests/lib/typed_data/simd_type_null_params_test.dart",
-  "../../../tests/lib/typed_data/simd_type_null_params_weak_test.dart",
   "../../../tests/lib/typed_data/typed_data_from_list_test.dart",
   "../../../tests/lib/typed_data/typed_data_hierarchy_int64_test.dart",
   "../../../tests/lib/typed_data/typed_data_hierarchy_test.dart",