diff --git a/addons/mail/static/src/models/messaging_notification_handler.js b/addons/mail/static/src/models/messaging_notification_handler.js
index 9309ecd5fa3..16d210c2d5d 100644
--- a/addons/mail/static/src/models/messaging_notification_handler.js
+++ b/addons/mail/static/src/models/messaging_notification_handler.js
@@ -323,10 +323,6 @@ registerModel({
                     pendingSeenMessageId: undefined,
                 });
             }
-            if (shouldComputeSeenIndicators) {
-                // FIXME force the computing of thread values (cf task-2261221)
-                this.messaging.models['Thread'].computeLastCurrentPartnerMessageSeenByEveryone(channel);
-            }
         },
         /**
          * @private
diff --git a/addons/mail/static/src/models/thread.js b/addons/mail/static/src/models/thread.js
index ba1b4d8da8d..e487afa96df 100644
--- a/addons/mail/static/src/models/thread.js
+++ b/addons/mail/static/src/models/thread.js
@@ -122,17 +122,6 @@ registerModel({
         },
     },
     modelMethods: {
-        /**
-         * @param {Thread} [thread] the concerned thread
-         */
-        computeLastCurrentPartnerMessageSeenByEveryone(thread = undefined) {
-            const threads = thread ? [thread] : this.messaging.models['Thread'].all();
-            threads.map(localThread => {
-                localThread.update({
-                    lastCurrentPartnerMessageSeenByEveryone: localThread._computeLastCurrentPartnerMessageSeenByEveryone(),
-                });
-            });
-        },
         /**
          * @param {Object} data
          * @return {Object}