Dart: Removes dartzip

mojo/dart/apptest/BUILD.gn

Index: mojo/dart/apptest/BUILD.gn
diff --git a/mojo/dart/apptest/BUILD.gn b/mojo/dart/apptest/BUILD.gn
index ef5b474adda174014ad577796dcf30232347c149..36e25c4b395423339b3638b8b045811ed4ba5ab0 100644
--- a/mojo/dart/apptest/BUILD.gn
+++ b/mojo/dart/apptest/BUILD.gn
@@ -4,18 +4,7 @@
 
 import("//mojo/public/dart/rules.gni")
 
-dartzip_package("mojo_dart_apptest_dartzip") {
-  uses_pub = true
-  sources = [
-    "lib/apptest.dart",
-    "pubspec.yaml",
-  ]
-  deps = [
-    "//mojo/public/dart:dart_dartzip",
-  ]
-}
-
-dart_pkg("mojo_dart_apptest_pkg") {
+dart_pkg("apptest") {
   libs = [ "lib/apptest.dart" ]
   sources = [
     "pubspec.yaml",
@@ -25,10 +14,3 @@ dart_pkg("mojo_dart_apptest_pkg") {
     "//third_party/dart-pkg",
   ]
 }
-
-group("apptest") {
-  deps = [
-    ":mojo_dart_apptest_dartzip",
-    ":mojo_dart_apptest_pkg",
-  ]
-}