Do not emit FlaggedApi annotations in core-current-stubs-for-system-modules-no-annotations.

Bug: 381077180
Test: m with aosp/3375925 applied
Change-Id: I0e55005203630edf489d3753cac02074b6a6f908
diff --git a/java/core-libraries/jarjar-strip-annotations-rules.txt b/java/core-libraries/jarjar-strip-annotations-rules.txt
index a1c261b..c74eaca 100644
--- a/java/core-libraries/jarjar-strip-annotations-rules.txt
+++ b/java/core-libraries/jarjar-strip-annotations-rules.txt
@@ -2,3 +2,4 @@
 strip-annotation android.annotation.Nullable
 strip-annotation androidx.annotation.RecentlyNonNull
 strip-annotation androidx.annotation.RecentlyNullable
+strip-annotation android.annotation.FlaggedApi