you can now add, edit and remove structural load cases

src/ifcopenshell-python/ifcopenshell/api/structural/remove_structural_load_case.py

@@ -0,0 +1,15 @@
+import ifcopenshell.api
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {"load_case": None}
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        # TODO: do a deep purge
+        for rel in self.settings["load_case"].IsGroupedBy or []:
+            self.file.remove(rel)
+        self.file.remove(self.settings["load_case"])