Fix: unused variable

src/main/java/com/mokasz/image_pool/restful/controller/ImageController.java

@@ -45,8 +45,7 @@ public class ImageController {
     float[] binaries = new float[64];
     service.transformBinaryArray(floats, binaries);
     String hash = service.getReadableHash(floats);
-    int updated =
-        jdbcTemplate.update(
+    jdbcTemplate.update(
             "INSERT INTO image_pool.image_hash VALUES (?, NOW(), ?) ON CONFLICT (hash) DO NOTHING",
             hash,
             binaries);