FIX: no offset for counter-pulse end

ossdbs/stimulation_signals/rectangle_signal.py

@@ -64,8 +64,7 @@ def get_time_domain_signal(self, dt: float, timesteps: int) -> np.ndarray:
                     self._pulse_width / dt + self._inter_pulse_width / dt
                 )
                 counter_pulse_end_idx = (
-                    offset
-                    + counter_pulse_start_idx
+                    counter_pulse_start_idx
                     + int(self._counter_pulse_width / dt)
                 )
                 signal[