Remove string check for 'None' in HTML template

In Jinja, you can use dot notation to check for values.  If a value
does not exist, you get None by default.

* wqflask/base/data_set/dataset.py (Dataset.get_accession_id): Remove
returning a string version of None.
* wqflask/wqflask/templates/correlation_page.html: Delete `!= 'None'`.

1 files changed, 1 insertions, 1 deletions

diff --git a/wqflask/base/data_set/dataset.py b/wqflask/base/data_set/dataset.py
index 69c842ad..b6899278 100644
--- a/wqflask/base/data_set/dataset.py
+++ b/wqflask/base/data_set/dataset.py
@@ -88,9 +88,9 @@ class DataSet:
                 )
                 results = cursor.fetchone()
 
+        # Returns None by default if this is not executed
         if results:
             return str(results[0])
-        return "None"
 
     def retrieve_other_names(self):
         """This method fetches the the dataset names in search_result.