Rename aidl_ include and src directories.

[ Merged from http://go/wvgerrit/152549 ]

Test: unit tests
Test: Google TV and Netflix
Test: atest GtsMediaTestCases

Bug: 216527109
Change-Id: Id70e43315550508e6fedacfee4f4ec009a24d0e3

libwvdrmengine/aidl_src/WVCreatePluginFactories.cpp

@@ -1,21 +0,0 @@
-//
-// Copyright 2022 Google LLC. All Rights Reserved. This file and proprietary
-// source code may only be used and distributed under the Widevine License
-// Agreement.
-//
-
-#include "WVCreatePluginFactories.h"
-
-namespace wvdrm {
-namespace hardware {
-namespace drm {
-namespace widevine {
-
-std::shared_ptr<WVDrmFactory> createDrmFactory() {
-  return ndk::SharedRefBase::make<WVDrmFactory>();
-}
-
-}  // namespace widevine
-}  // namespace drm
-}  // namespace hardware
-}  // namespace wvdrm