remove atomic=False where it is obviously not needed)

src/documents/migrations/0003_sender.py

@@ -32,7 +32,6 @@ def realign_senders(apps, schema_editor):
 
 
 class Migration(migrations.Migration):
-    atomic = False
     dependencies = [
         ('documents', '0002_auto_20151226_1316'),
     ]

src/documents/migrations/0012_auto_20160305_0040.py

@@ -112,7 +112,6 @@ def move_documents_and_create_thumbnails(apps, schema_editor):
 
 
 class Migration(migrations.Migration):
-    atomic = False
     dependencies = [
         ('documents', '0011_auto_20160303_1929'),
     ]

src/documents/migrations/0014_document_checksum.py

@@ -128,7 +128,6 @@ def do_nothing(apps, schema_editor):
 
 
 class Migration(migrations.Migration):
-    atomic = False
     dependencies = [
         ('documents', '0013_auto_20160325_2111'),
     ]

src/documents/migrations/0019_add_consumer_user.py

@@ -15,7 +15,6 @@ def reverse_func(apps, schema_editor):
 
 
 class Migration(migrations.Migration):
-    atomic = False
     dependencies = [
         ('documents', '0018_auto_20170715_1712'),
     ]

src/documents/migrations/0020_document_added.py

@@ -12,7 +12,6 @@ def set_added_time_to_created_time(apps, schema_editor):
         doc.save()
 
 class Migration(migrations.Migration):
-    atomic = False
     dependencies = [
         ('documents', '0019_add_consumer_user'),
     ]