Fix create and update template method calls

The removal of the process_type argument was causing a couple of the method calls to break since they were still sending in the argument.  This commit fixes that and updates the corresponding tests as well.

h/t @terrazoon for uncovering the touchpoints originally!

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

tests/app/main/views/test_template_folders.py

@@ -522,7 +522,6 @@ def test_can_create_email_template_with_parent_folder(
         'template_content': "here's a burrito 🌯",
         'template_type': 'email',
         'service': SERVICE_ONE_ID,
-        'process_type': 'normal',
         'parent_folder_id': PARENT_FOLDER_ID
     }
     client_request.post('.add_service_template',
@@ -540,7 +539,6 @@ def test_can_create_email_template_with_parent_folder(
         data['template_content'],
         SERVICE_ONE_ID,
         data['subject'],
-        data['process_type'],
         data['parent_folder_id'])