removed position.py - this code functionality is now the function '_sun_pos' in /physics/transforms/differential_rotation.py
removed position.py - this code functionality is now the function '_sun_pos' in /physics/transforms/differential_rotation.py

dpshelio/sunpy,Alex-Ian-Hamilton/sunpy,Alex-Ian-Hamilton/sunpy,Alex-Ian-Hamilton/sunpy,dpshelio/sunpy,dpshelio/sunpy