fix copyright

Author: jessica-mitchell

pynest/examples/EI_clustered_network/helper.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# helper_EI.py
+# helper.py
 #
 # This file is part of NEST.
 #

pynest/examples/EI_clustered_network/network.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# network_EI.py
+# network.py
 #
 # This file is part of NEST.
 #

pynest/examples/EI_clustered_network/network_params.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# network_params_EI.py
+# network_params.py
 #
 # This file is part of NEST.
 #

pynest/examples/EI_clustered_network/run_simulation.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# run_simulation_EI.py
+# run_simulation.py
 #
 # This file is part of NEST.
 #

pynest/examples/EI_clustered_network/sim_params.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# sim_params_EI.py
+# sim_params.py
 #
 # This file is part of NEST.
 #

pynest/examples/EI_clustered_network/stimulus_params.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# stimulus_params_EI.py
+# stimulus_params.py
 #
 # This file is part of NEST.
 #