refactor(street-level): drop openNearest; QA opens a photo by clicking a line then a cone

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/layers/streetLevel/providers/mapillary/source.test.mjs

@@ -62,21 +62,6 @@ test('graph lookups call graph.mapillary.com with the client token and requested
   assert.equal(url.searchParams.get('access_token'), 'MLY|1|abc');
   assert.equal(url.searchParams.get('sequence_ids'), 'seq-1');
   assert.match(url.searchParams.get('fields'), /geometry/);
-
-  const nearest = await source.nearestImages({
-    lat: 38.5,
-    lon: -121.5,
-    radius: 500,
-    limit: 500,
-  });
-  assert.equal(nearest.length, 1);
-  const nearestUrl = new URL(calls[1].url);
-  assert.equal(
-    nearestUrl.searchParams.get('radius'),
-    '50',
-    'radius is clamped to the API maximum',
-  );
-  assert.equal(nearestUrl.searchParams.get('limit'), '100');
 });
 
 test('graph calls without a token fail fast as keyRequired without a request', async () => {