Remove //mojo/platform_handle

components/filesystem/BUILD.gn

Index: components/filesystem/BUILD.gn
diff --git a/components/filesystem/BUILD.gn b/components/filesystem/BUILD.gn
index 22a8c404f218a30b7b2c27e8a92d64cd715673be..c35762c2dc04aa29651c2a21b9d692c3c9f31cc5 100644
--- a/components/filesystem/BUILD.gn
+++ b/components/filesystem/BUILD.gn
@@ -27,7 +27,7 @@ source_set("lib") {
     "//components/filesystem/public/interfaces",
     "//mojo/common",
     "//mojo/common:common_base",
-    "//mojo/platform_handle",
+    "//mojo/public/cpp/system",
     "//services/shell/public/cpp",
     "//services/shell/public/interfaces",
     "//url",
@@ -46,7 +46,6 @@ mojo_native_application("filesystem") {
     "//base",
     "//components/filesystem/public/interfaces",
     "//mojo/common",
-    "//mojo/platform_handle:for_shared_library",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",
     "//services/shell/public/cpp",
@@ -75,8 +74,8 @@ test("filesystem_service_unittests") {
     "//base",
     "//components/filesystem/public/interfaces",
     "//mojo/common",
-    "//mojo/platform_handle",
     "//mojo/public/cpp/bindings",
+    "//mojo/public/cpp/system",
     "//services/shell/public/cpp:shell_test_support",
     "//services/shell/public/cpp:sources",
     "//services/shell/public/cpp/test:run_all_shelltests",