Revert 205057 "Add JSON.pm to third_party"

Revert 205057 "Add JSON.pm to third_party"

It broke the check_perms check in ChromiumOS,

FAILED

/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/eg/bench_decode.pl: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/eg/bench_encode.pl: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/19_incr.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/20_unknown.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/e02_bool.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/e13_overloaded_eq.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/e14_decode_prefix.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/e16_incr_parse_fixed.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/e90_misc.t: Has shebang but not executable bit
/b/build/slave/Linux_ChromiumOS/build/src/third_party/JSON/JSON-2.59/t/xe02_bool.t: Has shebang but not executable bit

> Add JSON.pm to third_party
>
> We're using JSON as an exchange format both:
> 1. To make the existing Perl more modular
>    (so we can connect the parser and code generator via intermediate files),
> 2. To ease porting to Python, so we can connect existing Perl scripts
>    to new Python scripts.
>
> This is build-only: the module is used during the build, but not included
> in the distributed binary, and thus should not pose licensing problems.
>
> Source: http://www.cpan.org/authors/id/M/MA/MAKAMAKA/JSON-2.59.tar.gz
> SHA-1: 8a82c442088ffa0d605747fd5e65f51e037aad94
>
> License is same as Perl, meaning GPL v1+ or Artistic license:
> http://search.cpan.org/~makamaka/JSON-2.58/lib/JSON.pm#COPYRIGHT_AND_LICENSE
> http://dev.perl.org/licenses/
>
> BUG=239771
>
> Review URL: https://chromiumcodereview.appspot.com/15736030

TBR=nbarth@chromium.org
Review URL: https://codereview.chromium.org/16539003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@205061 0039d316-1c4b-4281-b951-d872f2087c98