Revert "Add null check for vrManager"

import static android.os.HardwarePropertiesManager.TEMPERATURE_THROTTLING_BELOW_VR_MIN;

import android.Manifest;

import android.app.ActivityManager;

import android.app.AppOpsManager;

import android.app.admin.DevicePolicyManager;

import android.content.Context;

import android.os.Binder;

import android.os.CpuUsageInfo;

import android.os.IHardwarePropertiesManager;

import android.os.Process;

import android.os.UserHandle;

import com.android.internal.util.DumpUtils;

import com.android.server.vr.VrManagerInternal;

        final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);

        final DevicePolicyManager dpm = mContext.getSystemService(DevicePolicyManager.class);

        if (!dpm.isDeviceOwnerApp(callingPackage)

                && !vrService.isCurrentVrListener(callingPackage, userId)

                && mContext.checkCallingOrSelfPermission(Manifest.permission.DEVICE_POWER)

                        != PackageManager.PERMISSION_GRANTED) {

            throw new SecurityException("The caller is not a device owner"

            throw new SecurityException("The caller is not a device owner, bound VrListenerService"

                + ", or holding the DEVICE_POWER permission.");

        }

        if (vrService != null && !vrService.isCurrentVrListener(callingPackage, userId)) {

            throw new SecurityException("The caller is not bound VrListenerService.");

        }

    }

}