Remove MIPS support

build/config/gcc/gcc_version.gni

Index: build/config/gcc/gcc_version.gni
diff --git a/build/config/gcc/gcc_version.gni b/build/config/gcc/gcc_version.gni
deleted file mode 100644
index 6741e45bf39104ab6180da6c1b40b3780c14b40d..0000000000000000000000000000000000000000
--- a/build/config/gcc/gcc_version.gni
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-if (is_android) {
-  gcc_version = 49
-} else if (current_toolchain == "//build/toolchain/cros:target" ||
-           current_toolchain == "//build/toolchain/linux:mipsel") {
-  gcc_version = exec_script("../../compiler_version.py",
-                            [
-                              "target",
-                              "compiler",
-                            ],
-                            "value")
-} else if (current_toolchain == "//build/toolchain/linux:x64" ||
-           current_toolchain == "//build/toolchain/linux:x86") {
-  # These are both the same and just use the default gcc on the system.
-  gcc_version = exec_script("../../compiler_version.py",
-                            [
-                              "host",
-                              "compiler",
-                            ],
-                            "value")
-} else {
-  gcc_version = 0
-}