Disabled Sphinx Domains feature

This avoids conflict's with Sphinx-PHP's API link features

Author: wouterj

_build/.requirements.txt

@@ -1,7 +1,6 @@
 docutils==0.13.1
 Pygments==2.2.0
 sphinx==1.8.5
-sphinxcontrib-phpdomain==0.6.3
 git+https://github.com/fabpot/[email protected]#egg_name=sphinx-php
 jsx-lexer===0.0.8
 sphinx_rtd_theme==0.5.0

_build/conf.py

@@ -38,9 +38,7 @@
     'sphinx.ext.autodoc', 'sphinx.ext.doctest',
     'sphinx.ext.todo', 'sphinx.ext.coverage', 'sphinx.ext.ifconfig',
     'sphinx.ext.viewcode', 'sphinx.ext.extlinks',
-    'sensio.sphinx.codeblock',
-    'sphinxcontrib.phpdomain',
-    'sensio.sphinx.configurationblock', 'sensio.sphinx.phpcode', 'sensio.sphinx.bestpractice'
+    'sensio.sphinx.codeblock', 'sensio.sphinx.configurationblock', 'sensio.sphinx.phpcode', 'sensio.sphinx.bestpractice'
     #,'sphinxcontrib.spelling'
 ]
 
@@ -132,8 +130,8 @@
     'varnish4': 'Varnish 4'
 }
 
-# use PHP as the primary domain
-primary_domain = 'php'
+# don't enable Sphinx Domains
+primary_domain = None
 
 # set url for API links
 api_url = 'https://github.com/symfony/symfony/blob/master/src/%s.php'