Remove //mojo/platform_handle

components/leveldb/BUILD.gn

Index: components/leveldb/BUILD.gn
diff --git a/components/leveldb/BUILD.gn b/components/leveldb/BUILD.gn
index 67ce46b8a64bff27910483ea97e9351ce65f8932..fb7068f9bd6bd84dd3ce7cd627540f85eb87e5d0 100644
--- a/components/leveldb/BUILD.gn
+++ b/components/leveldb/BUILD.gn
@@ -23,7 +23,7 @@ source_set("lib") {
     "//components/leveldb/public/cpp",
     "//components/leveldb/public/interfaces",
     "//mojo/common",
-    "//mojo/platform_handle",
+    "//mojo/public/cpp/system",
     "//services/shell/public/cpp",
     "//third_party/leveldatabase",
   ]
@@ -40,7 +40,6 @@ mojo_native_application("leveldb") {
     ":lib",
     "//components/leveldb/public/interfaces",
     "//mojo/common",
-    "//mojo/platform_handle:for_shared_library",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",
     "//services/shell/public/cpp",
@@ -69,8 +68,8 @@ test("leveldb_service_unittests") {
     "//components/leveldb/public/cpp",
     "//components/leveldb/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",