Move provisioning proxy steps to the new LSO endpoint

Move away from GÉANT-specific API endpoints in LSO, and instead make use of the generic one

gso/utils/helpers.py

@@ -6,8 +6,7 @@ from ipaddress import IPv4Address
 from uuid import UUID
 
 import pycountry
-from orchestrator import step
-from orchestrator.types import State, UUIDstr
+from orchestrator.types import UUIDstr
 from pydantic import BaseModel, validator
 from pydantic.fields import ModelField
 from pydantic_forms.validators import Choice
@@ -15,9 +14,7 @@ from pydantic_forms.validators import Choice
 from gso.products.product_blocks.iptrunk import IptrunkInterfaceBlock
 from gso.products.product_blocks.router import RouterVendor
 from gso.products.product_blocks.site import SiteTier
-from gso.products.product_types.iptrunk import Iptrunk
 from gso.products.product_types.router import Router
-from gso.services import provisioning_proxy
 from gso.services.netbox_client import NetboxClient
 from gso.services.subscriptions import get_active_subscriptions_by_field_and_value
 
@@ -39,26 +36,6 @@ class LAGMember(BaseModel):
         return hash((self.interface_name, self.interface_description))
 
 
-@step("[COMMIT] Set ISIS metric to 90.000")
-def set_isis_to_90000(subscription: Iptrunk, process_id: UUIDstr, callback_route: str, tt_number: str) -> State:
-    """Workflow step for setting the :term:`ISIS` metric to 90k as an arbitrarily high value to drain a link."""
-    old_isis_metric = subscription.iptrunk.iptrunk_isis_metric
-    subscription.iptrunk.iptrunk_isis_metric = 90000
-    provisioning_proxy.provision_ip_trunk(
-        subscription,
-        process_id,
-        callback_route,
-        tt_number,
-        "isis_interface",
-        dry_run=False,
-    )
-
-    return {
-        "subscription": subscription,
-        "old_isis_metric": old_isis_metric,
-    }
-
-
 def available_interfaces_choices(router_id: UUID, speed: str) -> Choice | None:
     """Return a list of available interfaces for a given router and speed.