refactor(QrcodeDropZone): remove duplicate code

Author: gruhn

src/components/QrcodeDropZone.vue

@@ -44,13 +44,6 @@ export default {
       return scanResult;
     },
 
-    async processUrl(url) {
-      const imageData = await imageDataFromUrl(url);
-      const scanResult = await scan(imageData);
-
-      return scanResult;
-    },
-
     async processUrl(url) {
       const imageData = await imageDataFromUrl(url);
       const scanResult = await scan(imageData);