diff --git a/.taskcluster.yml b/.taskcluster.yml
index d349fa519..b175ab5da 100644
--- a/.taskcluster.yml
+++ b/.taskcluster.yml
@@ -174,19 +174,12 @@ tasks:
                                               - index.mobile.v2.${project}.branch.${short_head_branch}.latest.taskgraph.decision
                                               - index.mobile.v2.${project}.branch.${short_head_branch}.revision.${head_sha}.taskgraph.decision
                                               - index.mobile.v2.${project}.revision.${head_sha}.taskgraph.decision
-                                              # TODO Bug 1631839: Remove the following routes once all consumers have migrated
-                                              - index.project.mobile.${project}.v2.branch.${short_head_branch}.latest.taskgraph.decision
-                                              - index.project.mobile.${project}.v2.branch.${short_head_branch}.revision.${head_sha}.taskgraph.decision
                                         - $if: 'tasks_for == "cron"'
                                           then:
                                               # cron context provides ${head_branch} as a short one
                                               - index.mobile.v2.${project}.branch.${head_branch}.latest.taskgraph.decision-${cron.job_name}
                                               - index.mobile.v2.${project}.branch.${head_branch}.revision.${head_sha}.taskgraph.decision-${cron.job_name}
                                               - index.mobile.v2.${project}.branch.${head_branch}.revision.${head_sha}.taskgraph.cron.${ownTaskId}
-                                              # TODO Bug 1631839: Remove the following routes once all consumers have migrated
-                                              - index.project.mobile.${project}.v2.branch.${head_branch}.latest.taskgraph.decision-${cron.job_name}
-                                              - index.project.mobile.${project}.v2.branch.${head_branch}.revision.${head_sha}.taskgraph.decision-${cron.job_name}
-                                              - index.project.mobile.${project}.v2.branch.${head_branch}.revision.${head_sha}.taskgraph.cron.${ownTaskId}
                           scopes:
                               $if: 'tasks_for == "github-push"'
                               then:
diff --git a/taskcluster/fenix_taskgraph/routes.py b/taskcluster/fenix_taskgraph/routes.py
index 6f7d03beb..32892295e 100644
--- a/taskcluster/fenix_taskgraph/routes.py
+++ b/taskcluster/fenix_taskgraph/routes.py
@@ -16,11 +16,6 @@ SIGNING_ROUTE_TEMPLATES = [
     "index.{trust-domain}.v2.{project}.{variant}.{build_date}.revision.{head_rev}.{abi}",
     "index.{trust-domain}.v2.{project}.{variant}.{build_date}.latest.{abi}",
     "index.{trust-domain}.v2.{project}.{variant}.revision.{head_rev}.{abi}",
-
-    # TODO Bug 1631839: Remove the following scopes once all consumers have migrated
-    "index.project.{trust-domain}.{project}.v2.{variant}.{build_date}.revision.{head_rev}",
-    "index.project.{trust-domain}.{project}.v2.{variant}.{build_date}.latest",
-    "index.project.{trust-domain}.{project}.v2.{variant}.latest",
 ]