fix(annual-daylight): remove --sun-modifiers option

It was an experimental option that I added to honeybee-radiance command but it turned out not to be useful and I removed it since.

lbt_recipes/annual_daylight/flow/main.py

@@ -229,7 +229,7 @@ def params_folder(self):
         return os.path.join(self.execution_folder, self._input_params['params_folder']).replace('\\', '/')
 
     def command(self):
-        return 'honeybee-radiance sky mtx sky.wea --name sky --north {north} --sky-type {sky_type} --{cumulative} --{sun_up_hours} --{output_type} --sun-modifiers suns.mod --output-format {output_format} --sky-density {sky_density}'.format(north=self.north, sky_type=self.sky_type, cumulative=self.cumulative, sun_up_hours=self.sun_up_hours, output_type=self.output_type, output_format=self.output_format, sky_density=self.sky_density)
+        return 'honeybee-radiance sky mtx sky.wea --name sky --north {north} --sky-type {sky_type} --{cumulative} --{sun_up_hours} --{output_type} --output-format {output_format} --sky-density {sky_density}'.format(north=self.north, sky_type=self.sky_type, cumulative=self.cumulative, sun_up_hours=self.sun_up_hours, output_type=self.output_type, output_format=self.output_format, sky_density=self.sky_density)
 
     def output(self):
         return {
@@ -524,7 +524,7 @@ def params_folder(self):
         return os.path.join(self.execution_folder, self._input_params['params_folder']).replace('\\', '/')
 
     def command(self):
-        return 'honeybee-radiance sky mtx sky.wea --name sky --north {north} --sky-type {sky_type} --{cumulative} --{sun_up_hours} --{output_type} --sun-modifiers suns.mod --output-format {output_format} --sky-density {sky_density}'.format(north=self.north, sky_type=self.sky_type, cumulative=self.cumulative, sun_up_hours=self.sun_up_hours, output_type=self.output_type, output_format=self.output_format, sky_density=self.sky_density)
+        return 'honeybee-radiance sky mtx sky.wea --name sky --north {north} --sky-type {sky_type} --{cumulative} --{sun_up_hours} --{output_type} --output-format {output_format} --sky-density {sky_density}'.format(north=self.north, sky_type=self.sky_type, cumulative=self.cumulative, sun_up_hours=self.sun_up_hours, output_type=self.output_type, output_format=self.output_format, sky_density=self.sky_density)
 
     def output(self):
         return {