Delete mcu HAL.

This HAL was intended to support doze mode but it is currently
unused and it's best for it to stay that way.

Bug: 16516536
Change-Id: I4f442e27d68f18ff322afd4c1debd2f392687e80
diff --git a/modules/Android.mk b/modules/Android.mk
index c903eee..0725d3e 100644
--- a/modules/Android.mk
+++ b/modules/Android.mk
@@ -1,4 +1,4 @@
 hardware_modules := gralloc hwcomposer audio nfc nfc-nci local_time \
 	power usbaudio audio_remote_submix camera consumerir sensors vibrator \
-	mcu tv_input fingerprint
+	tv_input fingerprint
 include $(call all-named-subdir-makefiles,$(hardware_modules))
diff --git a/modules/mcu/Android.mk b/modules/mcu/Android.mk
deleted file mode 100644
index ec40e3a..0000000
--- a/modules/mcu/Android.mk
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright (C) 2014 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-LOCAL_PATH := $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := mcu.default
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_SRC_FILES := mcu.c
-LOCAL_SHARED_LIBRARIES := liblog
-LOCAL_MODULE_TAGS := optional
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/modules/mcu/mcu.c b/modules/mcu/mcu.c
deleted file mode 100644
index 47300f9..0000000
--- a/modules/mcu/mcu.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <errno.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#define LOG_TAG "Legacy MCU HAL"
-#include <utils/Log.h>
-
-#include <hardware/hardware.h>
-#include <hardware/mcu.h>
-
-static int mcu_init(struct mcu_module *module)
-{
-    return 0;
-}
-
-static int mcu_send_message(struct mcu_module *module, const char *msg,
-                            const void *arg, size_t arg_len, void **result,
-                            size_t *result_len)
-{
-    return 0;
-}
-
-static struct hw_module_methods_t mcu_module_methods = {
-    .open = NULL,
-};
-
-struct mcu_module HAL_MODULE_INFO_SYM = {
-    .common = {
-        .tag = HARDWARE_MODULE_TAG,
-        .module_api_version = MCU_MODULE_API_VERSION_0_1,
-        .hal_api_version = HARDWARE_HAL_API_VERSION,
-        .id = MCU_HARDWARE_MODULE_ID,
-        .name = "Default MCU HAL",
-        .author = "The Android Open Source Project",
-        .methods = &mcu_module_methods,
-    },
-
-    .init = mcu_init,
-    .sendMessage = mcu_send_message,
-};