Revert "Update bionic kernel headers using update_all.py"

This reverts commit 94a85f663694e1869acb1c2e8a3c374a6fa3ab86

There is a smoke test failure for Prime but Crespo/Stingray are fine. Will revert the change for now until further investigation is made.
diff --git a/libc/kernel/common/linux/ipmi_msgdefs.h b/libc/kernel/common/linux/ipmi_msgdefs.h
index 33a372c..247d563 100644
--- a/libc/kernel/common/linux/ipmi_msgdefs.h
+++ b/libc/kernel/common/linux/ipmi_msgdefs.h
@@ -7,73 +7,63 @@
  ***   structures, and macros generated from the original header, and thus,
  ***   contains no copyrightable information.
  ***
- ***   To edit the content of this header, modify the corresponding
- ***   source file (e.g. under external/kernel-headers/original/) then
- ***   run bionic/libc/kernel/tools/update_all.py
- ***
- ***   Any manual change here will be lost the next time this script will
- ***   be run. You've been warned!
- ***
  ****************************************************************************
  ****************************************************************************/
 #ifndef __LINUX_IPMI_MSGDEFS_H
 #define __LINUX_IPMI_MSGDEFS_H
+
 #define IPMI_NETFN_SENSOR_EVENT_REQUEST 0x04
 #define IPMI_NETFN_SENSOR_EVENT_RESPONSE 0x05
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_GET_EVENT_RECEIVER_CMD 0x01
+
 #define IPMI_NETFN_APP_REQUEST 0x06
 #define IPMI_NETFN_APP_RESPONSE 0x07
 #define IPMI_GET_DEVICE_ID_CMD 0x01
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_CLEAR_MSG_FLAGS_CMD 0x30
 #define IPMI_GET_DEVICE_GUID_CMD 0x08
 #define IPMI_GET_MSG_FLAGS_CMD 0x31
 #define IPMI_SEND_MSG_CMD 0x34
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_GET_MSG_CMD 0x33
 #define IPMI_SET_BMC_GLOBAL_ENABLES_CMD 0x2e
 #define IPMI_GET_BMC_GLOBAL_ENABLES_CMD 0x2f
 #define IPMI_READ_EVENT_MSG_BUFFER_CMD 0x35
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_GET_CHANNEL_INFO_CMD 0x42
+
 #define IPMI_NETFN_STORAGE_REQUEST 0x0a
 #define IPMI_NETFN_STORAGE_RESPONSE 0x0b
 #define IPMI_ADD_SEL_ENTRY_CMD 0x44
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define IPMI_BMC_SLAVE_ADDR 0x20
+
 #define IPMI_MAX_MSG_LENGTH 272  
+
 #define IPMI_CC_NO_ERROR 0x00
 #define IPMI_NODE_BUSY_ERR 0xc0
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_INVALID_COMMAND_ERR 0xc1
 #define IPMI_ERR_MSG_TRUNCATED 0xc6
 #define IPMI_LOST_ARBITRATION_ERR 0x81
 #define IPMI_ERR_UNSPECIFIED 0xff
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define IPMI_CHANNEL_PROTOCOL_IPMB 1
 #define IPMI_CHANNEL_PROTOCOL_ICMB 2
 #define IPMI_CHANNEL_PROTOCOL_SMBUS 4
 #define IPMI_CHANNEL_PROTOCOL_KCS 5
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_CHANNEL_PROTOCOL_SMIC 6
 #define IPMI_CHANNEL_PROTOCOL_BT10 7
 #define IPMI_CHANNEL_PROTOCOL_BT15 8
 #define IPMI_CHANNEL_PROTOCOL_TMODE 9
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define IPMI_CHANNEL_MEDIUM_IPMB 1
 #define IPMI_CHANNEL_MEDIUM_ICMB10 2
 #define IPMI_CHANNEL_MEDIUM_ICMB09 3
 #define IPMI_CHANNEL_MEDIUM_8023LAN 4
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_CHANNEL_MEDIUM_ASYNC 5
 #define IPMI_CHANNEL_MEDIUM_OTHER_LAN 6
 #define IPMI_CHANNEL_MEDIUM_PCI_SMBUS 7
 #define IPMI_CHANNEL_MEDIUM_SMBUS1 8
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPMI_CHANNEL_MEDIUM_SMBUS2 9
 #define IPMI_CHANNEL_MEDIUM_USB1 10
 #define IPMI_CHANNEL_MEDIUM_USB2 11
 #define IPMI_CHANNEL_MEDIUM_SYSINTF 12
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #endif