Merge pull request swiftlang#38568 from drexin/wip-android-libatomic

[Concurrency] Remove libatomic dependency for Android

Author: drexin

stdlib/public/Concurrency/CMakeLists.txt

@@ -29,15 +29,6 @@ if(SWIFT_CONCURRENCY_USES_DISPATCH)
   endif()
 endif()
 
-# Linux requires us to link an atomic library to use atomics.
-# Frustratingly, in many cases this isn't necessary because the
-# sequence is inlined, but we have some code that's just subtle
-# enough to turn into runtime calls.
-if(SWIFT_HOST_VARIANT STREQUAL "android")
-  list(APPEND SWIFT_RUNTIME_CONCURRENCY_SWIFT_LINK_FLAGS
-    -latomic)
-endif()
-
 add_swift_target_library(swift_Concurrency ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS_STDLIB
   ../CompatibilityOverride/CompatibilityOverride.cpp
   Actor.cpp