Merge pull request #67770 from apple/ktoso-patch-15

Author: ktoso

test/Concurrency/Runtime/async_taskgroup_is_asyncsequence.swift

@@ -7,8 +7,6 @@
 // REQUIRES: concurrency_runtime
 // UNSUPPORTED: back_deployment_runtime
 
-// UNSUPPORTED: OS=linux-gnu
-
 @available(SwiftStdlib 5.1, *)
 func test_taskGroup_is_asyncSequence() async {
   print(#function)