use the default recovery UI

The key handling we use for mako is now the recovery default; we no
longer need a subclass of ScreenRecoveryUI.

Change-Id: Ic60d4ee76a13839547f4fda83a7c1a59a178f505
diff --git a/recovery/recovery_ui.cpp b/recovery/recovery_ui.cpp
index c13f5c9..342c0e7 100644
--- a/recovery/recovery_ui.cpp
+++ b/recovery/recovery_ui.cpp
@@ -34,37 +34,11 @@
                         "wipe cache partition",
                         NULL };
 
-class MakoUI : public ScreenRecoveryUI
-{
-public:
-    MakoUI() :
-        consecutive_power_keys(0) {
-    }
-
-    virtual KeyAction CheckKey(int key) {
-        if (IsKeyPressed(KEY_POWER) && key == KEY_VOLUMEUP) {
-            return TOGGLE;
-        }
-        if (key == KEY_POWER) {
-            ++consecutive_power_keys;
-            if (consecutive_power_keys >= 7) {
-                return REBOOT;
-            }
-        } else {
-            consecutive_power_keys = 0;
-        }
-        return ENQUEUE;
-    }
-
-private:
-    int consecutive_power_keys;
-};
-
 class MakoDevice : public Device
 {
 public:
     MakoDevice() :
-        ui(new MakoUI) {
+        ui(new ScreenRecoveryUI) {
     }
 
     RecoveryUI* GetUI() { return ui; }