libcamera: ipu3: Remove initialization of Size

The Size struct constructor defaults the width and height to 0.
Remove the empty braced-list initialization as it is not required.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>

src/libcamera/pipeline/ipu3/ipu3.cpp

@@ -246,7 +246,7 @@ CameraConfiguration::Status IPU3CameraConfiguration::validate()
 	 * only. If no resolution is requested for any stream, or if no sensor
 	 * resolution is large enough, pick the largest one.
 	 */
-	Size size = {};
+	Size size;
 
 	for (const StreamConfiguration &cfg : config_) {
 		if (cfg.size.width > size.width)