Revert of Adds eventlog provider dll to describe the message types of SYSLOG.

base/win/BUILD.gn

Index: base/win/BUILD.gn
diff --git a/base/win/BUILD.gn b/base/win/BUILD.gn
index 017b25acf4e35f16680b9f5267f3e21456f53b27..01092735b3ae44276cc9180f26876572772c2a5a 100644
--- a/base/win/BUILD.gn
+++ b/base/win/BUILD.gn
@@ -3,7 +3,6 @@
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
-import("//build/win/message_compiler.gni")
 
 declare_args() {
   # Indicates if the handle verifier should operate in a single module mode. By
@@ -22,17 +21,3 @@
   header_dir = "base/win"
   flags = [ "SINGLE_MODULE_MODE_HANDLE_VERIFIER=$single_module_mode_handle_verifier" ]
 }
-
-message_compiler("eventlog_messages") {
-  visibility = [
-    "//base:base",
-    "//chrome:eventlog_provider",
-  ]
-
-  sources = [
-    "eventlog_messages.mc",
-  ]
-
-  user_mode_logging = false
-  compile_generated_code = false
-}