--- a/taskcluster/taskgraph/target_tasks.py
+++ b/taskcluster/taskgraph/target_tasks.py
@@ -286,28 +286,16 @@ def target_tasks_pine(full_task_graph, p
         if platform == 'linux64-asan':
             return False
         # disable non-pine and nightly tasks
         if standard_filter(task, parameters):
             return True
     return [l for l, t in full_task_graph.tasks.iteritems() if filter(t)]
 
 
-@_target_task('stylo_tasks')
-def target_tasks_stylo(full_task_graph, parameters):
-    """Target stylotasks that only run on the m-c branch."""
-    def filter(task):
-        platform = task.attributes.get('build_platform')
-        # only select platforms
-        if platform not in ('linux64-stylo'):
-            return False
-        return True
-    return [l for l, t in full_task_graph.tasks.iteritems() if filter(t)]
-
-
 # nightly_linux should be refactored to be nightly_all once
 # https://bugzilla.mozilla.org/show_bug.cgi?id=1267425 dependent bugs are
 # implemented
 @_target_task('nightly_macosx')
 def target_tasks_nightly_macosx(full_task_graph, parameters):
     """Select the set of tasks required for a nightly build of macosx. The
     nightly build process involves a pipeline of builds, signing,
     and, eventually, uploading the tasks to balrog."""