[Fuchsia] Use more high level fuchsia-gn-sdk templates

shell/platform/fuchsia/dart_runner/BUILD.gn

@@ -190,12 +190,6 @@ template("aot_runner_package") {
                   "//flutter/shell/platform/fuchsia/runtime/dart/profiler_symbols:dart_aot_runner",
                   "target_gen_dir") + "/dart_aot_runner.dartprofilersymbols")
 
-      inputs = [
-        vmservice_snapshot,
-        observatory_archive_file,
-        dart_profiler_symbols,
-      ]
-
       resources += [
         {
           path = vmservice_snapshot

tools/fuchsia/build_fuchsia_artifacts.py

@@ -146,6 +146,8 @@ def CopyZirconFFILibIfExists(source, destination):
   FindFileAndCopyTo('libzircon_ffi.so', source_root, destination_base)
 
 
+# TODO(zijiehe): http://crbug.com/368608542, avoid using pm or building far
+# packages here, packages should be built by ninja.
 def CopyToBucketWithMode(source, destination, aot, product, runner_type, api_level):
   mode = 'aot' if aot else 'jit'
   product_suff = '_product' if product else ''