Remove usage of --android_aapt flag. AAPT2 is now the only option.

PiperOrigin-RevId: 285454721
diff --git a/src/test/shell/bazel/android/aapt_integration_test.sh b/src/test/shell/bazel/android/aapt_integration_test.sh
index 3ef298f..c67174c 100755
--- a/src/test/shell/bazel/android/aapt_integration_test.sh
+++ b/src/test/shell/bazel/android/aapt_integration_test.sh
@@ -51,7 +51,7 @@
   setup_android_sdk_support
   create_android_binary
 
-  assert_build //java/bazel:bin --android_aapt=aapt2
+  assert_build //java/bazel:bin
 }
 
 run_suite "aapt2 integration test"