diff --git a/src/message/messageActionSheet.js b/src/message/messageActionSheet.js
index 3d571248faf..7fd9f8ff679 100644
--- a/src/message/messageActionSheet.js
+++ b/src/message/messageActionSheet.js
@@ -52,12 +52,6 @@ const reply = ({ message, dispatch, ownEmail }) => {
 reply.title = 'Reply';
 reply.errorMessage = 'Failed to reply';
 
-const narrowToTopic = ({ message, dispatch, ownEmail }) => {
-  dispatch(doNarrow(getNarrowFromMessage(message, ownEmail), message.id));
-};
-narrowToTopic.title = 'Narrow to topic';
-narrowToTopic.errorMessage = 'Failed to narrow to topic';
-
 const copyToClipboard = async ({ _, auth, message }) => {
   const rawMessage = isAnOutboxMessage(message) /* $FlowFixMe: then really type Outbox */
     ? message.markdownContent
@@ -154,7 +148,6 @@ const allButtonsRaw = {
   // For messages
   addReaction,
   reply,
-  narrowToTopic,
   copyToClipboard,
   shareMessage,
   editMessage,
@@ -185,7 +178,6 @@ type ConstructSheetParams = {|
   backgroundData: BackgroundData,
   message: Message | Outbox,
   narrow: Narrow,
-  isAnnouncementOnly: boolean,
 |};
 
 export const constructHeaderActionButtons = ({
@@ -214,10 +206,9 @@ const messageNotDeleted = (message: Message | Outbox): boolean =>
   message.content !== '<p>(deleted)</p>';
 
 export const constructMessageActionButtons = ({
-  backgroundData: { ownEmail, flags, isAdmin },
+  backgroundData: { ownEmail, flags },
   message,
   narrow,
-  isAnnouncementOnly,
 }: ConstructSheetParams): ButtonCode[] => {
   const buttons = [];
   if (message.reactions.length > 0) {
@@ -227,11 +218,7 @@ export const constructMessageActionButtons = ({
     buttons.push('addReaction');
   }
   if (!isAnOutboxMessage(message) && !isTopicNarrow(narrow) && !isPrivateOrGroupNarrow(narrow)) {
-    if (isAnnouncementOnly && !isAdmin) {
-      buttons.push('narrowToTopic');
-    } else {
-      buttons.push('reply');
-    }
+    buttons.push('reply');
   }
   if (messageNotDeleted(message)) {
     buttons.push('copyToClipboard');
diff --git a/src/webview/MessageList.js b/src/webview/MessageList.js
index 0b9e8088769..4852ad306ca 100644
--- a/src/webview/MessageList.js
+++ b/src/webview/MessageList.js
@@ -54,7 +54,6 @@ import { getUpdateEvents } from './webViewHandleUpdates';
 import { handleMessageListEvent } from './webViewEventHandlers';
 import { base64Utf8Encode } from '../utils/encoding';
 import * as logging from '../utils/logging';
-import { getIsActiveStreamAnnouncementOnly } from '../subscriptions/subscriptionSelectors';
 
 // ESLint doesn't notice how `this.props` escapes, and complains about some
 // props not being used here.
@@ -74,7 +73,6 @@ export type BackgroundData = $ReadOnly<{
   mute: MuteState,
   ownEmail: string,
   ownUserId: number,
-  isAdmin: boolean,
   allImageEmojiById: $ReadOnly<{ [id: string]: ImageEmojiType }>,
   twentyFourHourTime: boolean,
   subscriptions: Subscription[],
@@ -89,7 +87,6 @@ type SelectorProps = {|
   showMessagePlaceholders: boolean,
   theme: ThemeName,
   typingUsers: $ReadOnlyArray<User>,
-  isAnnouncementOnly: boolean,
 |};
 
 // TODO get a type for `connectActionSheet` so this gets fully type-checked.
@@ -343,7 +340,6 @@ export default connect<SelectorProps, _, _>((state, props: OuterProps) => {
     mute: getMute(state),
     ownEmail: getOwnEmail(state),
     ownUserId: getOwnUser(state).user_id,
-    isAdmin: getOwnUser(state).is_admin,
     allImageEmojiById: getAllImageEmojiById(state),
     subscriptions: getSubscriptions(state),
     twentyFourHourTime: getRealm(state).twentyFourHourTime,
@@ -361,6 +357,5 @@ export default connect<SelectorProps, _, _>((state, props: OuterProps) => {
         : getShowMessagePlaceholders(props.narrow)(state),
     theme: getSettings(state).theme,
     typingUsers: props.typingUsers || getCurrentTypingUsers(state, props.narrow),
-    isAnnouncementOnly: getIsActiveStreamAnnouncementOnly(state, props.narrow),
   };
 })(connectActionSheet(withGetText(MessageList)));
diff --git a/src/webview/webViewEventHandlers.js b/src/webview/webViewEventHandlers.js
index e1e50af334a..61463cd8f53 100644
--- a/src/webview/webViewEventHandlers.js
+++ b/src/webview/webViewEventHandlers.js
@@ -127,7 +127,6 @@ type Props = $ReadOnly<{
   messages: $ReadOnlyArray<Message | Outbox>,
   narrow: Narrow,
   showActionSheetWithOptions: ShowActionSheetWithOptions,
-  isAnnouncementOnly: boolean,
 }>;
 
 const fetchMore = (props: Props, event: MessageListEventScroll) => {
@@ -181,18 +180,11 @@ const handleLongPress = (
   if (!message) {
     return;
   }
-  const {
-    dispatch,
-    showActionSheetWithOptions,
-    backgroundData,
-    narrow,
-    isAnnouncementOnly,
-  } = props;
+  const { dispatch, showActionSheetWithOptions, backgroundData, narrow } = props;
   showActionSheet(target === 'header', dispatch, showActionSheetWithOptions, _, {
     backgroundData,
     message,
     narrow,
-    isAnnouncementOnly,
   });
 };
 
diff --git a/static/translations/messages_en.json b/static/translations/messages_en.json
index c9138e98ca0..10587c4a16e 100644
--- a/static/translations/messages_en.json
+++ b/static/translations/messages_en.json
@@ -47,7 +47,6 @@
   "Narrow to conversation": "Narrow to conversation",
   "Reply": "Reply",
   "Add a reaction": "Add a reaction",
-  "Narrow to topic": "Narrow to topic",
   "Copy to clipboard": "Copy to clipboard",
   "Link copied to clipboard": "Link copied to clipboard",
   "Mute topic": "Mute topic",
@@ -123,7 +122,6 @@
   "Edit message": "Edit message",
   "Network request failed": "Network request failed",
   "Failed to add reaction": "Failed to add reaction",
-  "Failed to narrow to topic": "Failed to narrow to topic",
   "Failed to reply": "Failed to reply",
   "Failed to copy message to clipboard": "Failed to copy message to clipboard",
   "Failed to share message": "Failed to share message",