Remove the syzygy optimization code.

BUG=651078

Review-Url: https://codereview.chromium.org/2420943002
Cr-Original-Commit-Position: refs/heads/master@{#425775}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: dc24dfdf83e70db531ca2dcb1d9a304415951400

config/compiler/compiler.gni

@@ -64,13 +64,6 @@ declare_args() {
   }
 }
 
-declare_args() {
-  # Generate Syzygy optimized binaries. Syzygy optimize mode is a profile
-  # guided optimization that reorders code for better locality.
-  syzygy_optimize = is_win && target_cpu == "x86" && is_official_build &&
-                    !is_clang && !is_win_fastlink && !is_syzyasan
-}
-
 declare_args() {
   # Whether to use the gold linker from binutils instead of lld or bfd.
   use_gold = !use_lld && !(is_chromecast && is_linux &&

win/syzygy/syzygy.gni

@@ -7,57 +7,6 @@ assert(is_win)
 # Where the output binaries will be placed.
 syzygy_dest_dir = "$root_out_dir/syzygy"
 
-# Generates a Syzygy optimize target.
-#
-#   binary_name (required)
-#     Name of the binary to be instrumented, with no extension or path. This
-#     binary_name is assumed to be in the output directory and must be
-#     generated by a dependency of this target.
-#
-#   deps (required)
-#     Normal meaning.
-#
-#   data_deps
-#     Normal meaning.
-template("syzygy_optimize") {
-  action(target_name) {
-    if (defined(invoker.visibility)) {
-      visibility = invoker.visibility
-    }
-    script = "//build/win/syzygy/reorder.py"
-
-    binary_name = invoker.binary_name
-    input_dll = "$root_out_dir/$binary_name"
-    input_pdb = "$root_out_dir/$binary_name.pdb"
-
-    inputs = [
-      input_dll,
-      #input_pdb,
-    ]
-
-    outputs = [
-      "$syzygy_dest_dir/$binary_name",
-      "$syzygy_dest_dir/$binary_name.pdb",
-    ]
-
-    args = [
-      "--input_executable",
-      rebase_path(input_dll, root_build_dir),
-      "--input_symbol",
-      rebase_path(input_pdb, root_build_dir),
-      "--destination_dir",
-      rebase_path(syzygy_dest_dir, root_build_dir),
-    ]
-
-    forward_variables_from(invoker,
-                           [
-                             "deps",
-                             "data_deps",
-                             "public_deps",
-                           ])
-  }
-}
-
 # Instruments a binary with SyzyAsan.
 #
 #   binary_name (required)