diff --git a/docs/conf.py b/docs/conf.py
index 6900e0c..600d67e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -164,68 +164,3 @@ texinfo_documents = [
      author, 'percy', 'One line description of project.',
      'Miscellaneous'),
 ]
-
-
-# -- Options for breathe --------------------------------------------------
-
-import subprocess, os
-
-read_the_docs_build = os.environ.get('READTHEDOCS', None) == 'True'
-
-if read_the_docs_build:
-    subprocess.call('doxygen Doxyfile', shell = True)
-
-breathe_projects = {"percy": "xml"}
-breathe_default_project = "percy"
-
-# -- Custom directives --------------------------------------------------
-
-from docutils import nodes
-from docutils.parsers.rst import Directive
-from sphinx import addnodes
-
-def extract_brief(tree, name):
-    node = tree.findtext("./compounddef/sectiondef/memberdef/[name='%s']/briefdescription/para" % name)
-    return node.strip() if node else "no brief description"
-
-class DocBriefDirective(Directive):
-    has_content = True
-    def run(self):
-        tree = self.state.document.settings.env.app.doxyxml
-        return [nodes.line(text = extract_brief(tree, self.content[0].strip()))]
-
-class DocBriefTableDirective(Directive):
-    has_content = True
-    def run(self):
-        tree = self.state.document.settings.env.app.doxyxml
-        table = nodes.table()
-        tgroup = nodes.tgroup(cols = 2)
-        tgroup += nodes.colspec(colwidth = 50)
-        tgroup += nodes.colspec(colwidth = 50)
-        # header
-        tgroup += nodes.thead('', nodes.row('', *[nodes.entry('', nodes.line(text = c)) for c in ["Function", "Description"]]))
-        # rows
-        tbody = nodes.tbody()
-        for c in self.content:
-            name = c.strip()
-            query = name.replace("&", " &")
-            for elem in tree.findall("./compounddef/sectiondef/memberdef/[name='%s']" % query):
-                args = ', '.join(e.text for e in elem.findall("./param/declname"))
-                ref = addnodes.pending_xref('', refdomain = 'cpp', refexplicit = False, reftype = 'func', reftarget = 'percy::' + name)
-                ref += nodes.literal(text = '%s(%s)' % (name, args))
-                reft = nodes.paragraph()
-                reft.extend([ref])
-                func = nodes.entry('', reft)
-                desc = nodes.entry('', nodes.line(text = elem.findtext("./briefdescription/para")))
-                tbody += nodes.row('', func, desc)
-
-        tgroup += tbody
-        table += tgroup
-
-        return [table]
-
-def setup(app):
-    import xml.etree.ElementTree as ET
-    app.doxyxml = ET.parse("xml/namespacepercy.xml")
-    app.add_directive('doc_brief', DocBriefDirective)
-    app.add_directive('doc_brief_table', DocBriefTableDirective)