[epiphany/mcatanzaro/help-icon] Update app icon in user help

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 70e7aca3048c35eef504c871b7f5fe32250c1615
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Feb 2 08:48:12 2020 -0600

    Update app icon in user help
    
    Also, remove instructions on how to find the icon, since the icon is
    nowadays shipped by Epiphany rather than externally.
    
    See: #1087

 help/C/media/web-browser-icon |   1 -
 help/C/media/web-browser.png  | Bin 4992 -> 4562 bytes
 2 files changed, 1 deletion(-)
---
diff --git a/help/C/media/web-browser.png b/help/C/media/web-browser.png
index 019e22e1f..2ad36a15d 100644
Binary files a/help/C/media/web-browser.png and b/help/C/media/web-browser.png differ