clean up usb tethering

Change-Id: I4a6ab0904a301e32bde4a29689aacb9e2850578f

device.mk

@@ -99,7 +99,6 @@ PRODUCT_COPY_FILES := \
         device/zte/blade/prebuilt/system/etc/media_profiles.xml:system/etc/media_profiles.xml \
         device/zte/blade/prebuilt/system/etc/media_codecs.xml:system/etc/media_codecs.xml \
         device/zte/blade/prebuilt/system/etc/audio_policy.conf:system/etc/audio_policy.conf \
-        device/zte/blade/prebuilt/system/etc/start_usb0.sh:system/etc/start_usb0.sh \
         device/zte/blade/prebuilt/system/etc/gps.conf:system/etc/gps.conf
 
 # Bluetooth configuration files

overlay/frameworks/base/core/res/res/values/config.xml

@@ -21,10 +21,6 @@
      for different hardware and product builds. -->
 <resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
 
-    <string-array translatable="false" name="config_tether_usb_regexs">
-        <item>"usb0"</item>
-    </string-array>
-
     <string-array translatable="false" name="config_tether_bluetooth_regexs">
         <item>"bnep\\d"</item>
     </string-array>

prebuilt/root/init.blade.rc

@@ -133,11 +133,6 @@ service dhcpcd_wlan0 /system/bin/dhcpcd -BKL
     disabled
     oneshot
 
-service start_usb0 /system/bin/logwrapper /system/bin/sh /etc/start_usb0.sh
-    class main
-    disabled
-    oneshot
-
 service iprenew_wlan0 /system/bin/dhcpcd -n
     class main
     disabled

prebuilt/root/init.blade.usb.rc

@@ -4,9 +4,6 @@ on init
     write /sys/devices/platform/android_usb/functions/cur_pid 1351
     write /sys/devices/platform/android_usb/functions/enable_switch 0
 
-on boot
-   start start_usb0
-
 on property:sys.usb.config=adb
     write /sys/module/g_android/parameters/product_id 1352
     start adbd