[fuchsia] Remove fuchsia_dart from dependency from local-sdk.py.

The fuchsia_dart SDK dependency is no longer required, so remove it.

Change-Id: I54a3151adf051c0f47087259e0d169366fcbdcba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2157225
Auto-Submit: Wez <wez@chromium.org>
Commit-Queue: Kevin Marshall <kmarshall@chromium.org>
Reviewed-by: Kevin Marshall <kmarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760596}

tools/fuchsia/local-sdk.py

@@ -39,8 +39,7 @@ def BuildForArch(arch):
   Run('scripts/fx', '--dir', build_dir, 'set', 'core.qemu-' + arch,
       '--with-base=//sdk/bundles:tools', '--args=is_debug=false',
       '--args=build_sdk_archives=true')
-  Run('scripts/fx', 'build', 'topaz/public/sdk:fuchsia_dart', 'sdk',
-      'build/images')
+  Run('scripts/fx', 'build', 'sdk', 'build/images')
 
 
 def _CopyFilesIntoExistingDirectory(src, dst):
@@ -94,7 +93,7 @@ def main(args):
 
     arch_output_dir = os.path.join(fuchsia_root, 'out', 'release-' + arch)
 
-    sdk_tarballs = ['core.tar.gz', 'fuchsia_dart.tar.gz']
+    sdk_tarballs = ['core.tar.gz']
 
     for sdk_tar in sdk_tarballs:
       sdk_tar_path = os.path.join(arch_output_dir, 'sdk', 'archive', sdk_tar)