Revert of Update WV test license server config to use portable sdk server. (https://codereview.chromium.org/143003026/)

Reason for revert:
Broke gclient runhooks on Google Chrome ChromeOS:

http://build.chromium.org/p/chromium.chrome/builders/Google%20Chrome%20ChromeOS/builds/65059/steps/gclient%20runhooks/logs/stdio

gyp: /b/build/slave/google-chrome-rel-chromeos/build/src/third_party/widevine/test/license_server/license_server.gyp not found


Original issue's description:
> Update WV test license server config to use portable sdk server.
> 
> This also makes the test server dynamically select an open port to use.
> 
> BUG=339983
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=254258

TBR=ddorwin@chromium.org,xhwang@chromium.org,shadi@google.com,shadi@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=339983

Review URL: https://codereview.chromium.org/183973009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254272 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254272
Remove context property that is never used 

We're seeing crashes in this. Removing it probably won't make it go 
away, but might move them to something more actionable. 

BUG=348158
R=kbr



git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254274 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254274