Remove unused launch-from-recipe dialog path (Refs #91)

src/lib/ui/components/DeployServerDialog.svelte

@@ -13,12 +13,10 @@
 
     let {
         open = $bindable(false),
-        sourceDeploymentId = '',
         initialGame = 't5',
         initialMapSlug = ''
     }: {
         open?: boolean;
-        sourceDeploymentId?: string;
         initialGame?: ZombieGame;
         initialMapSlug?: string;
     } = $props();
@@ -144,26 +142,6 @@
             const body = await response.json();
             if (current !== visit) return;
             catalogs = { t5: body.t5Zombie, t6: body.t6Zombie };
-            if (sourceDeploymentId) {
-                const sourceResponse = await fetch(
-                    `/api/provisioning/${encodeURIComponent(sourceDeploymentId)}`,
-                    { signal }
-                );
-                const source = await sourceResponse.json();
-                if (current !== visit) return;
-                if (
-                    !sourceResponse.ok ||
-                    !source.recipe ||
-                    !['t5', 't6'].includes(source.recipe.game) ||
-                    !catalogs[source.recipe.game as ZombieGame].some(
-                        (map) => map.slug === source.recipe.mapSlug
-                    )
-                ) {
-                    throw new Error('The original launch map is unavailable.');
-                }
-                game = source.recipe.game;
-                mapSlug = source.recipe.mapSlug;
-            }
             if (!catalogs[game].some((map) => map.slug === mapSlug))
                 mapSlug = catalogs[game][0]?.slug ?? '';
             loaded = true;