Replace 4 more instances of [1,170,-90] with NO_STRETCH_SG_PARAMS

gcpy/plot/compare_single_level.py
- Replaced 2 additional instances of [1,170,-90] with the
  constant NO_STRETCH_SG_PARAMS from gcpy/constants.py.

gcpy/plot/compare_zonal_mean.py
- Replaced 2 additional instances of [1,170,-90] with the
  constant NO_STRETCH_SG_PARAMS from gcpy/constants.py.

The instances of [1,170,-90] were introduced from a rebase.

Signed-off-by: Bob Yantosca <yantosca@seas.harvard.edu>

Author: yantosca

gcpy/plot/compare_single_level.py

@@ -255,7 +255,7 @@ def compare_single_level(
             refdata.attrs['TARGET_LON'],
             refdata.attrs['TARGET_LAT']]
     else:
-        sg_ref_params = [1, 170, -90]
+        sg_ref_params = NO_STRETCH_SG_PARAMS
 
     # Dev stretch attributes
     if 'stretch_factor' in devdata.attrs:
@@ -269,7 +269,7 @@ def compare_single_level(
             devdata.attrs['TARGET_LON'],
             devdata.attrs['TARGET_LAT']]
     else:
-        sg_dev_params = [1, 170, -90]
+        sg_dev_params = NO_STRETCH_SG_PARAMS
 
     # Get grid info and regrid if necessary
     [refres, refgridtype, devres, devgridtype, cmpres, cmpgridtype, regridref,

gcpy/plot/compare_zonal_mean.py

@@ -318,7 +318,7 @@ def compare_zonal_mean(
             refdata.attrs['TARGET_LON'],
             refdata.attrs['TARGET_LAT']]
     else:
-        sg_ref_params = [1, 170, -90]
+        sg_ref_params = NO_STRETCH_SG_PARAMS
 
     # Dev stretch attributes
     if 'stretch_factor' in devdata.attrs:
@@ -332,7 +332,7 @@ def compare_zonal_mean(
             devdata.attrs['TARGET_LON'],
             devdata.attrs['TARGET_LAT']]
     else:
-        sg_dev_params = [1, 170, -90]
+        sg_dev_params = NO_STRETCH_SG_PARAMS
 
     [refres, refgridtype, devres, devgridtype, cmpres, cmpgridtype,
      regridref, regriddev, regridany, refgrid, devgrid, cmpgrid,