diff --git a/staticlibs/testutils/Android.bp b/staticlibs/testutils/Android.bp
index e2b46310a4..24257eb569 100644
--- a/staticlibs/testutils/Android.bp
+++ b/staticlibs/testutils/Android.bp
@@ -67,14 +67,6 @@ java_library {
         "//packages/modules/Connectivity/tests/cts/hostside",
         "//external/cronet:__subpackages__",
     ],
-    // There are downstream branches using an old version of Kotlin
-    // that used to reserve the right to make breaking changes to the
-    // Result type and disallowed returning an instance of it.
-    // Later versions allowed this and there was never a change,
-    // so no matter the version returning Result is always fine,
-    // but on sc-mainline-prod the compiler rejects it without
-    // the following flag.
-    kotlincflags: ["-Xallow-result-return-type"],
     libs: [
         "jsr305",
     ],