Fix default imageSource on Filters example (facebook#45799)

Summary:
Pull Request resolved: facebook#45799

No idea how I missed this but I don't think `defaultProps` is a thing in React Native? So the images were not showing

Changelog: [internal]

Reviewed By: joevilches

Differential Revision: D60392853

fbshipit-source-id: 27280033fb719340a809053d6ca98ac3f178c8c3

packages/rn-tester/js/examples/Filter/FilterExample.js

@@ -24,10 +24,6 @@ type Props = $ReadOnly<{
   imageSource?: number,
 }>;
 
-const defaultProps = {
-  imageSource: hotdog,
-};
-
 function StaticViewAndImage(props: Props): React.Node {
   return (
     <>
@@ -47,20 +43,19 @@ function StaticViewAndImage(props: Props): React.Node {
       </View>
       <View style={styles.container}>
         <Image
-          source={props.imageSource}
+          source={props.imageSource ?? hotdog}
           style={[props.style, styles.commonImage]}
           resizeMode="contain"
         />
         <Image
-          source={props.imageSource}
+          source={props.imageSource ? props.imageSource : hotdog}
           style={styles.commonImage}
           resizeMode="contain"
         />
       </View>
     </>
   );
 }
-StaticViewAndImage.defaultProps = defaultProps;
 
 function StaticViewAndImageWithState(props: Props): React.Node {
   const [s, setS] = React.useState(true);