Truncate frequencies used in calibration

For calibration, the log10(frequnecy_array) causes log warning messaged (due to taking the log of 0). To resolve this, and also to provide a slight speed up, this only calculates the values in the frequency mask

bilby/gw/detector/interferometer.py

@@ -492,7 +492,7 @@ class Interferometer(object):
             -1j * 2 * np.pi * dt * self.frequency_array[self.frequency_mask])
 
         signal_ifo[self.frequency_mask] *= self.calibration_model.get_calibration_factor(
-            self.log10_frequency_array[self.frequency_mask],
+            self.frequency_array[self.frequency_mask],
             prefix='recalib_{}_'.format(self.name), **parameters)
 
         return signal_ifo
@@ -639,10 +639,6 @@ class Interferometer(object):
     def frequency_array(self):
         return self.strain_data.frequency_array
 
-    @property
-    def log10_frequency_array(self):
-        return self.strain_data.log10_frequency_array
-
     @property
     def frequency_mask(self):
         return self.strain_data.frequency_mask