Update README.md

Remove imsea (it is not online anymore)

README.md

@@ -1426,7 +1426,6 @@ API | Description | Auth | HTTPS | CORS |
 | [Google Photos](https://developers.google.com/photos) | Integrate Google Photos with your apps or devices | `OAuth` | Yes | Unknown |
 | [Image Upload](https://apilayer.com/marketplace/image_upload-api) | Image Optimization | `apiKey` | Yes | Unknown |
 | [Imgur](https://apidocs.imgur.com/) | Images | `OAuth` | Yes | Unknown |
-| [Imsea](https://imsea.herokuapp.com/) | Free image search | No | Yes | Unknown |
 | [Lorem Picsum](https://picsum.photos/) | Images from Unsplash | No | Yes | Unknown |
 | [ObjectCut](https://objectcut.com/) | Image Background removal | `apiKey` | Yes | Yes |
 | [Pexels](https://www.pexels.com/api/) | Free Stock Photos and Videos | `apiKey` | Yes | Yes |