secure image: remove note about physical access

this seems unnecessary, it already says "make it somewhat hader for
someone on the local network", thus not saying anything about physical
access

Author: wiedehopf

src/modules/adsb-feeder/filesystem/root/opt/adsb/adsb-setup/templates/systemmgmt.html

@@ -79,9 +79,8 @@ <h5 class="mt-3">Secure Feeder System</h5>
       <div class="row align-items-center">
         <div class="col-12">
           Attempt to make it somewhat harder for someone on the local network to gain access to the
-          image. Of course, anyone with physical access to the feeder hardware can circumvent the
-          protection attempted here. Also disables the wifi hotspot which allows for wifi
-          configuration when there is no network connectivity.
+          image. Also disables the wifi hotspot which allows for wifi configuration when there is no
+          network connectivity.
           <br>
           To enable this option, log in locally or via SSH and run this command:
           <br>