Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/autogen.sh

Index: third_party/protobuf/autogen.sh
diff --git a/third_party/protobuf/autogen.sh b/third_party/protobuf/autogen.sh
deleted file mode 100644
index 8160313e136c0a9389d36de14466c69ede7c6c3b..0000000000000000000000000000000000000000
--- a/third_party/protobuf/autogen.sh
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/sh
-
-# Run this script to generate the configure script and other files that will
-# be included in the distribution.  These files are not checked in because they
-# are automatically generated.
-
-set -e
-
-# Check that we're being run from the right directory.
-if test ! -f src/google/protobuf/stubs/common.h; then
-  cat >&2 << __EOF__
-Could not find source code.  Make sure you are running this script from the
-root of the distribution tree.
-__EOF__
-  exit 1
-fi
-
-# Check that gmock is present.  Usually it is already there since the
-# directory is set up as an SVN external.
-if test ! -e gmock; then
-  echo "Google Mock not present.  Fetching gmock-1.7.0 from the web..."
-  curl -O https://googlemock.googlecode.com/files/gmock-1.7.0.zip
-  unzip -q gmock-1.7.0.zip
-  rm gmock-1.7.0.zip
-  mv gmock-1.7.0 gmock
-fi
-
-set -ex
-
-# TODO(kenton):  Remove the ",no-obsolete" part and fix the resulting warnings.
-autoreconf -f -i -Wall,no-obsolete
-
-rm -rf autom4te.cache config.h.in~
-exit 0