'**SUMMARY**
Remove Grid Layer from the Image.
**PARAMETERS**
None
**RETURNS**
Drawing Layer corresponding to the Grid Layer
**EXAMPLE**
>>>> img = Image(\'something.png\')
>>>> img.grid([20,20],(255,0,0))
>>>> gridLayer = img.removeGrid()'

def removeGrid(self):

    if (self._gridLayer[0] is not None):
        grid = self.removeDrawingLayer(self._gridLayer[0])
        self._gridLayer = [None, [0, 0]]
        return grid
    else:
        return None
