Revert "Add "test_suites" attribute to SettingsRoboTests."

This reverts commit 87318575508ef904de87aa59a9e9abfcc811f97d.

Reason for revert: Robolectric tests aren't supported in TEST_MAPPING, so no need to follow the guide.

Change-Id: Id8b1a82a26cf390f6f1088a7fcf54287e73af6b5
diff --git a/tests/robotests/Android.bp b/tests/robotests/Android.bp
index 6d3c748..95a78c7 100644
--- a/tests/robotests/Android.bp
+++ b/tests/robotests/Android.bp
@@ -50,7 +50,7 @@
         "src/**/*.kt",
     ],
 
-    test_suites: ["general-tests"],
+    // test_suites attribute is not needed. This module will be configured in ATP GCL file.
 
     static_libs: [
         "Robolectric_shadows_androidx_fragment_upstream",