Usb: Remove unused interface methods and constants

Clean up unused interface methods and constants in
USB gadget HAL.

Bug: 287516105
Change-Id: I824c99fa23499936037b637095084ce9cd31881d

services/usb/java/com/android/server/usb/hal/gadget/UsbGadgetAidl.java

@@ -66,10 +66,6 @@ public final class UsbGadgetAidl implements UsbGadgetHal {
         return GADGET_HAL_V2_0;
     }
 
-    @Override
-    public void systemReady() {
-    }
-
     public void serviceDied() {
         logAndPrint(Log.ERROR, mPw, "Usb Gadget AIDL hal service died");
         synchronized (mGadgetProxyLock) {

services/usb/java/com/android/server/usb/hal/gadget/UsbGadgetHal.java

@@ -28,69 +28,6 @@ import java.lang.String;
  * @hide
  */
 public interface UsbGadgetHal {
-    /**
-     * Power role: This USB port can act as a source (provide power).
-     * @hide
-     */
-    public static final int HAL_POWER_ROLE_SOURCE = 1;
-
-    /**
-     * Power role: This USB port can act as a sink (receive power).
-     * @hide
-     */
-    public static final int HAL_POWER_ROLE_SINK = 2;
-
-    @IntDef(prefix = { "HAL_POWER_ROLE_" }, value = {
-            HAL_POWER_ROLE_SOURCE,
-            HAL_POWER_ROLE_SINK
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    @interface HalUsbPowerRole{}
-
-    /**
-     * Data role: This USB port can act as a host (access data services).
-     * @hide
-     */
-    public static final int HAL_DATA_ROLE_HOST = 1;
-
-    /**
-     * Data role: This USB port can act as a device (offer data services).
-     * @hide
-     */
-    public static final int HAL_DATA_ROLE_DEVICE = 2;
-
-    @IntDef(prefix = { "HAL_DATA_ROLE_" }, value = {
-            HAL_DATA_ROLE_HOST,
-            HAL_DATA_ROLE_DEVICE
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    @interface HalUsbDataRole{}
-
-    /**
-     * This USB port can act as a downstream facing port (host).
-     *
-     * @hide
-     */
-    public static final int HAL_MODE_DFP = 1;
-
-    /**
-     * This USB port can act as an upstream facing port (device).
-     *
-     * @hide
-     */
-    public static final int HAL_MODE_UFP = 2;
-    @IntDef(prefix = { "HAL_MODE_" }, value = {
-            HAL_MODE_DFP,
-            HAL_MODE_UFP,
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    @interface HalUsbPortMode{}
-
-    /**
-     * UsbPortManager would call this when the system is done booting.
-     */
-    public void systemReady();
-
     /**
      * This function is used to query the USB functions included in the
      * current USB configuration.

services/usb/java/com/android/server/usb/hal/gadget/UsbGadgetHidl.java

@@ -123,10 +123,6 @@ public final class UsbGadgetHidl implements UsbGadgetHal {
         }
     }
 
-    @Override
-    public void systemReady() {
-    }
-
     static boolean isServicePresent(IndentingPrintWriter pw) {
         try {
             IUsbGadget.getService(true);