Merge pull request #77414 from rintaro/test-feature-isolateddeinit

[Tests] Remove swift_feature_IsolatedDeinit

Author: rintaro

test/Concurrency/Runtime/async_task_locals_isolated_deinit.swift

@@ -7,7 +7,6 @@
 // REQUIRES: executable_test
 // REQUIRES: concurrency
 // REQUIRES: concurrency_runtime
-// REQUIRES: swift_feature_IsolatedDeinit
 // UNSUPPORTED: back_deployment_runtime
 
 import Swift

test/SILOptimizer/stack_promotion_isolated_deinit.swift

@@ -1,6 +1,5 @@
 // RUN: %target-swift-frontend -parse-as-library -O -module-name=test %s -emit-sil | %FileCheck %s
 // REQUIRES: swift_in_compiler
-// REQUIRES: swift_feature_IsolatedDeinit
 
 @globalActor actor AnotherActor: GlobalActor {
   static let shared = AnotherActor()