Automated cherry pick of #3970 (#3974)

* update android downloader

* update en.json

Co-authored-by: Hossein Ahmadian-Yazdi <hahmadia@users.noreply.github.com>

app/screens/image_preview/downloader.android.js

@@ -77,10 +77,6 @@ export default class Downloader extends PureComponent {
                 id: 'mobile.downloader.android_started',
                 defaultMessage: 'Download started',
             });
-            const title = intl.formatMessage({
-                id: 'mobile.downloader.android_success',
-                defaultMessage: 'download successful',
-            });
             const complete = intl.formatMessage({
                 id: 'mobile.downloader.android_complete',
                 defaultMessage: 'Download complete',
@@ -127,7 +123,7 @@ export default class Downloader extends PureComponent {
                         useDownloadManager: true,
                         notification: true,
                         path: dest,
-                        title: `${file.caption} ${title}`,
+                        title: `${file.caption}`,
                         mime: data.mime_type,
                         description: data.name,
                         mediaScannable: true,

assets/base/i18n/en.json

@@ -220,7 +220,6 @@
   "mobile.downloader.android_failed": "Download failed",
   "mobile.downloader.android_permission": "We need access to the downloads folder to save files.",
   "mobile.downloader.android_started": "Download started",
-  "mobile.downloader.android_success": "download successful",
   "mobile.downloader.complete": "Download complete",
   "mobile.downloader.disabled_description": "File downloads are disabled on this server. Please contact your System Admin for more details.\n",
   "mobile.downloader.disabled_title": "Download disabled",