Adapt to showing this message only for USB sticks

wiki/src/install/inc/steps/restart_first_time.inline.mdwn

@@ -227,10 +227,7 @@ the rest of the instructions afterwards, we recommend you either:
    1. What exactly happens when trying to start? Report the complete error
       message that appears on the screen, if any.
 
-   1. Are you trying to start Tails on a USB stick or a DVD?
-
-   1. If you are trying to start on a USB stick, which program did you
-      use to install it:
+   1. Which program did you use to install your USB stick:
 
       - <span class="application">Etcher</span>,
       - <span class="application">GNOME Disks</span>,
@@ -243,7 +240,7 @@ the rest of the instructions afterwards, we recommend you either:
       before, from another USB stick or DVD, or with another version of Tails?
       If so, which ones?
 
-   1. Does the same USB stick or DVD start successfully on other computers?
+   1. Does the same USB stick start successfully on other computers?
 
    """]]