Delete bundled copy of OpenSSL and replace with README.

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
deleted file mode 100644
index 749ba08cbff9c9fab8e0efca2acbffbb251ef75c..0000000000000000000000000000000000000000
--- a/BUILD.gn
+++ /dev/null
@@ -1,97 +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.
-
-# Config for us and everybody else depending on openssl.
-config("openssl_config") {
-  include_dirs = []
-  if (cpu_arch == "x64") {
-    # Ensure the 64-bit opensslconf.h header is used in preference to the one
-    # in openssl/include.
-    include_dirs += [ "config/x64" ]
-  }
-
-  include_dirs += [ "openssl/include" ]
-}
-
-# Config internal to this build file.
-config("openssl_internal_config") {
-  visibility = ":*"  # Only targets in this file can depend on this.
-}
-
-# The list of OpenSSL files is kept in openssl.gypi. Read it.
-gypi_values = exec_script(
-    "//build/gypi_to_gn.py",
-    [ rebase_path("//third_party/openssl/openssl.gypi") ],
-    "scope",
-    [ "//third_party/openssl/openssl.gypi" ])
-
-component("openssl") {
-  sources = gypi_values.openssl_common_sources
-
-  defines = gypi_values.openssl_common_defines
-  defines += [
-    "PURIFY",
-    "MONOLITH",
-  ]
-
-  direct_dependent_configs = [ ":openssl_config" ]
-
-  cflags = []
-
-  # Also gets the include dirs from :openssl_config
-  include_dirs = [
-    ".",
-    "openssl",
-    "openssl/crypto",
-    "openssl/crypto/asn1",
-    "openssl/crypto/evp",
-    "openssl/crypto/modes",
-  ]
-
-  if (is_posix && !is_android) {
-    defines += [
-      # ENGINESDIR must be defined if OPENSSLDIR is.
-      "ENGINESDIR=\"/dev/null\"",
-      # Set to ubuntu default path for convenience. If necessary, override
-      # this at runtime with the SSL_CERT_DIR environment variable.
-      "OPENSSLDIR=\"/etc/ssl\"",
-    ]
-  }
-
-  if (cpu_arch == "x64") {
-    sources += gypi_values.openssl_x86_64_sources
-    sources -= gypi_values.openssl_x86_64_source_excludes
-    defines += gypi_values.openssl_x86_64_defines
-  } else if (cpu_arch == "x86") {
-    sources += gypi_values.openssl_x86_sources
-    sources -= gypi_values.openssl_x86_source_excludes
-    defines += gypi_values.openssl_x86_defines
-  } else if (cpu_arch == "arm") {
-    # The ARM sources do not compile with full warnings enabled.
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-
-    sources += gypi_values.openssl_arm_sources
-    sources -= gypi_values.openssl_arm_source_excludes
-    defines += gypi_values.openssl_arm_defines
-  } else if (cpu_arch == "mips") {
-    sources += gypi_values.openssl_mips_sources
-    sources -= gypi_values.openssl_mips_source_excludes
-    defines += gypi_values.openssl_mips_defines
-  }
-
-  if (is_clang) {
-    cflags += [
-      # OpenSSL has a few |if ((foo == NULL))| checks.
-      "-Wno-parentheses-equality",
-      # OpenSSL uses several function-style macros and then ignores the
-      # returned value.
-      "-Wno-unused-value",
-    ]
-  } else {
-    cflags += [
-      "-Wno-unused-variable",
-    ]
-  }
-}