PX4: don't use tone_alarm in init

and removed use of binfs

mk/PX4/ROMFS/init.d/rc.APM

@@ -18,20 +18,6 @@ then
     sh /etc/init.d/rc.error
 fi
 
-# mount binfs so we can find the built-in apps
-if [ -f /bin/reboot ]
-then
-    echo "binfs already mounted"
-else
-    echo "Mounting binfs"
-    if mount -t binfs /dev/null /bin
-    then
-            echo "binfs mounted OK"
-    else
-            sh /etc/init.d/rc.error
-    fi
-fi
-
 set sketch NONE
 if rm /fs/microsd/APM/boot.log
 then
@@ -39,12 +25,6 @@ then
 fi
 set logfile /fs/microsd/APM/BOOT.LOG
 
-if [ ! -f /bin/ArduPilot ]
-then
-    echo "/bin/ardupilot not found"
-    sh /etc/init.d/rc.error
-fi
-
 if mkdir /fs/microsd/APM > /dev/null
 then
     echo "Created APM directory"

mk/PX4/ROMFS/init.d/rc.error

@@ -1,7 +1,5 @@
 echo "Error in startup"
 
-tone_alarm MNCC
-
 if [ $HAVE_RGBLED == 1 ]
 then
         rgbled rgb 16 0 0

mk/PX4/ROMFS/init.d/rcS

@@ -24,10 +24,6 @@ echo "[init] looking for microSD..."
 if mount -t vfat /dev/mmcsd0 /fs/microsd
 then
     echo "[init] card mounted at /fs/microsd"
-    set HAVE_MICROSD 1
-else
-    set HAVE_MICROSD 0
-    tone_alarm MNBGG
 fi
 
 # Look for an additional init script that allows changing the default