Stop setting usb config from recovery init script

We used to set sys.usb.config to adb in the init script. And the purpose
is to start adbd. This is a duplicate of code because we always check and
reset the usb config in recovery_main.

Test: check adbd starts
Change-Id: I6e2842ff8aebf6ccf3bd3f2ae85323899a2b9de4

etc/init.rc

@@ -95,14 +95,6 @@ service fastbootd /system/bin/fastbootd
 on property:service.adb.root=1
     restart adbd
 
-# Always start adbd on userdebug and eng builds
-on fs && property:ro.debuggable=1
-    setprop sys.usb.config adb
-
-# Also start adbd on user build with an unlocked bootloader
-on fs && property:ro.debuggable=0 && androidboot.verifiedbootstate=orange
-    setprop sys.usb.config adb
-
 on fs && property:sys.usb.configfs=1
     mount configfs none /config
     mkdir /config/usb_gadget/g1 0770 shell shell