removing sphynx build: no real docs

.travis.yml

@@ -2,7 +2,6 @@ language: python
 env:
   - TOX_ENV=py26
   - TOX_ENV=py27
-  - TOX_ENV=docs
   - TOX_ENV=flake8
 install:
   - pip install tox

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.3
-envlist = py26,py27,docs,flake8
+envlist = py26,py27,flake8
 
 [testenv]
 deps=
@@ -16,13 +16,6 @@ whitelist_externals=bash
 
 [testenv:py27]
 
-[testenv:docs]
-downloadcache={toxworkdir}/downloadcache
-basepython=python2.7
-changedir=doc
-deps=sphinx
-commands=sphinx-build -W -b html -d {envtmpdir}/doctrees .  {envtmpdir}/html
-
 [testenv:flake8]
 basepython=python2.7
 deps=flake8