#39 Drop fundings

* removes fundings from all models, except the EMA model for migration compatibility (some old data may have fundings data)

compensation/models.py

@@ -146,17 +146,6 @@ class AbstractCompensation(BaseObject):
     after_states = models.ManyToManyField(CompensationState, blank=True, related_name='+', help_text="Refers to 'Zielzustand Biotop'")
     actions = models.ManyToManyField(CompensationAction, blank=True, help_text="Refers to 'Maßnahmen'")
 
-    fundings = models.ManyToManyField(
-        KonovaCode,
-        blank=True,
-        limit_choices_to={
-            "code_lists__in": [CODELIST_COMPENSATION_FUNDING_ID],
-            "is_selectable": True,
-            "is_archived": False,
-        },
-        help_text="List of funding project codes",
-    )
-
     deadlines = models.ManyToManyField("konova.Deadline", blank=True, related_name="+")
 
     geometry = models.ForeignKey(Geometry, null=True, blank=True, on_delete=models.SET_NULL)