Remove broken link to doxygen

PyConf/python/PyConf/control_flow.py

@@ -92,7 +92,7 @@ Implicit in the control flow is the *data flow*. Notice above that we don't
 specify that the reconstruction should run, even though we need the
 reconstruction to run the PV filters!
 
-In brief, satisfying data dependencies is the job of `the scheduler`_,
+In brief, satisfying data dependencies is the job of the scheduler,
 ``HLTControlFlowMgr``. When the scheduler needs to run an algorithm, it takes
 care of running the algorithms in the data dependency tree. (It's clever
 enough to not run the same algorithm multiple times, in case it appears in
@@ -115,8 +115,6 @@ enum is used to specify how child decisions should be combined, ``AND`` or
 
 .. autoclass:: PyConf.control_flow.CompositeNode
    :members:
-
-.. _the scheduler: https://lhcb-doxygen.web.cern.ch/lhcb-doxygen/moore/latest/de/d00/class_h_l_t_control_flow_mgr.html
 """
 
 from __future__ import absolute_import, division, print_function