Add migration for removing additional products.

gso/migrations/versions/2024-12-04_4cc835c615fc_remove_additional_products.py

+"""remove additional products.
+
+Revision ID: 4cc835c615fc
+Revises: 28c1723c6a00
+Create Date: 2024-12-04 14:54:22.167158
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = '4cc835c615fc'
+down_revision = '28c1723c6a00'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    conn.execute(sa.text("""
+DELETE FROM product_product_blocks WHERE product_product_blocks.product_id IN (SELECT products.product_id FROM products WHERE products.name IN ('IAS', 'Imported IAS', 'Imported GÉANT IP', 'GÉANT IP')) AND product_product_blocks.product_block_id IN (SELECT product_blocks.product_block_id FROM product_blocks WHERE product_blocks.name IN ('NRENL3CoreServiceBlock'))
+    """))
+    conn.execute(sa.text("""
+DELETE FROM subscription_instances WHERE subscription_instances.product_block_id IN (SELECT product_blocks.product_block_id FROM product_blocks WHERE product_blocks.name IN ('NRENAccessPort', 'NRENL3CoreServiceBlock'))
+    """))
+    conn.execute(sa.text("""
+DELETE FROM product_blocks WHERE product_blocks.name IN ('NRENAccessPort', 'NRENL3CoreServiceBlock')
+    """))
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+