diff --git a/clang/cmake/caches/Fuchsia-stage2.cmake b/clang/cmake/caches/Fuchsia-stage2.cmake
--- a/clang/cmake/caches/Fuchsia-stage2.cmake
+++ b/clang/cmake/caches/Fuchsia-stage2.cmake
@@ -70,9 +70,6 @@
   set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
   set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
   set(LIBCXX_ABI_VERSION 2 CACHE STRING "")
-  set(DARWIN_ios_ARCHS arm64 CACHE STRING "")
-  set(DARWIN_iossim_ARCHS arm64 CACHE STRING "")
-  set(DARWIN_osx_ARCHS arm64;x86_64 CACHE STRING "")
 endif()
 
 if(WIN32)