Don't specify concurrency except to limit it to 1

Author: maeve-fpf

etc/supervisor/supervisord.conf

@@ -55,13 +55,13 @@ stderr_events_enabled=true
 
 [program:celery-main]
 environment = CELERY_WORKER_RUNNING=1
-command = /usr/local/bin/celery worker --hostname 'main@%%h' --app weblate.utils --loglevel info --concurrency=4 --queues=celery --prefetch-multiplier=4
+command = /usr/local/bin/celery worker --hostname 'main@%%h' --app weblate.utils --loglevel info --queues=celery --prefetch-multiplier=4
 stdout_events_enabled=true
 stderr_events_enabled=true
 
 [program:celery-notify]
 environment = CELERY_WORKER_RUNNING=1
-command = /usr/local/bin/celery worker --hostname 'notify@%%h' --app weblate.utils --loglevel info --concurrency=4 --queues=notify --prefetch-multiplier=10
+command = /usr/local/bin/celery worker --hostname 'notify@%%h' --app weblate.utils --loglevel info --queues=notify --prefetch-multiplier=10
 stdout_events_enabled=true
 stderr_events_enabled=true
 
@@ -73,7 +73,7 @@ stderr_events_enabled=true
 
 [program:celery-translate]
 environment = CELERY_WORKER_RUNNING=1
-command = /usr/local/bin/celery worker --hostname 'translate@%%h' --app weblate.utils --loglevel info --concurrency=4 --queues=translate --prefetch-multiplier=4
+command = /usr/local/bin/celery worker --hostname 'translate@%%h' --app weblate.utils --loglevel info --queues=translate --prefetch-multiplier=4
 stdout_events_enabled=true
 stderr_events_enabled=true