Remove donor badges warning in comment.

app/src/main/java/org/thoughtcrime/securesms/util/FeatureFlags.java

@@ -403,11 +403,8 @@ public final class FeatureFlags {
     return getBoolean(CHANGE_NUMBER_ENABLED, false);
   }
 
-  /** Whether or not to show donor badges in the UI.
-   *
-   * WARNING: Donor Badges is an unfinished feature and should not be enabled in production builds.
-   *    Enabling this flag in a custom build can result in crashes and could result in your Google Pay
-   *    account being charged real money.
+  /**
+   * Whether or not to show donor badges in the UI.
    */
   public static boolean donorBadges() {
     if (Environment.IS_STAGING) {