Remove global_grid arg to spatialhash

Author: fluidnumericsJoe

parcels/xgrid.py

@@ -318,7 +318,6 @@ def _fpoint_info(self):
 
     def get_spatial_hash(
         self,
-        global_grid=False,
         reconstruct=False,
     ):
         """Get the SpatialHash data structure of this Grid that allows for
@@ -339,7 +338,7 @@ def get_spatial_hash(
 
         """
         if self._spatialhash is None or reconstruct:
-            self._spatialhash = SpatialHash(self, global_grid, reconstruct)
+            self._spatialhash = SpatialHash(self, reconstruct)
 
         return self._spatialhash