chore: Remove migration

src/main/resources/db/migration/V18__ObservationDataSchema_Eplevikler.sql

-INSERT INTO public.observation_data_schema
-(organization_id, organism_id, data_schema, data_model)
-VALUES (1, 68,
-        '{
-          "$schema": "http://json-schema.org/draft-04/schema#",
-          "type": "object",
-          "title": " ",
-          "properties": {
-            "trap1": {
-              "title": "Antall insekter, felle 1",
-              "type": "number",
-              "minimum": 0,
-              "default": 0
-            },
-            "trap2": {
-              "title": "Antall insekter, felle 2",
-              "type": "number",
-              "minimum": 0,
-              "default": 0
-            },
-            "trap3": {
-              "title": "Antall insekter, felle 3",
-              "type": "number",
-              "minimum": 0,
-              "default": 0
-            },
-            "trap4": {
-              "title": "Antall insekter, felle 4",
-              "type": "number",
-              "minimum": 0,
-              "default": 0
-            },
-            "bbch": {
-              "title": "BBCH",
-              "type": "number",
-              "minimum": 0,
-              "default": 0
-            }
-          }
-        }',
-        '{
-            "trap1":0,
-            "trap2":0,
-            "trap3":0,
-            "trap4":0,
-            "bbch":0
-        }'
-       );
\ No newline at end of file