Revert "Use aidl interface for Widevine service."

This reverts commit 96a8ccd4a1.

Reason for revert:
Could break DeviceManifest/SingleManifestTest#ManifestAidlHalsServed

Bug: 200055138
Bug: 170964303
Bug: 217241995
Change-Id: I9c42df15defec428c9ef8c62439c63d4a603fee6

libwvdrmengine/aidl_include/Utils.h

@@ -1,50 +0,0 @@
-//
-// Copyright 2021 Google LLC. All Rights Reserved. This file and proprietary
-// source code may only be used and distributed under the Widevine License
-// Agreement.
-//
-
-#ifndef WV_UTILS_H_
-#define WV_UTILS_H_
-
-#include <aidl/android/hardware/drm/Status.h>
-#include <android/binder_auto_utils.h>
-
-#include <string>
-#include <vector>
-
-#include "log.h"
-
-namespace wvdrm {
-
-inline ::aidl::android::hardware::drm::LogPriority toAidlLogPriority(
-    wvutil::LogPriority p) {
-  switch (p) {
-    case wvutil::LogPriority::CDM_LOG_ERROR:
-      return ::aidl::android::hardware::drm::LogPriority::ERROR;
-    case wvutil::LogPriority::CDM_LOG_WARN:
-      return ::aidl::android::hardware::drm::LogPriority::WARN;
-    case wvutil::LogPriority::CDM_LOG_INFO:
-      return ::aidl::android::hardware::drm::LogPriority::INFO;
-    case wvutil::LogPriority::CDM_LOG_DEBUG:
-      return ::aidl::android::hardware::drm::LogPriority::DEBUG;
-    case wvutil::LogPriority::CDM_LOG_VERBOSE:
-      return ::aidl::android::hardware::drm::LogPriority::VERBOSE;
-    default:
-      return ::aidl::android::hardware::drm::LogPriority::UNKNOWN;
-  }
-}
-
-inline ::ndk::ScopedAStatus toNdkScopedAStatus(
-    ::aidl::android::hardware::drm::Status status) {
-  if (::aidl::android::hardware::drm::Status::OK == status)
-    return ::ndk::ScopedAStatus::ok();
-  else {
-    return ::ndk::ScopedAStatus::fromServiceSpecificError(
-        static_cast<int32_t>(status));
-  }
-}
-
-}  // namespace wvdrm
-
-#endif  // WV_UTILS_H_