Remove invalid/unnecessary shebang lines

mpcdf_branch.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import mpcdf_common

mpcdf_enable_repositories.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import mpcdf_common

mpcdf_push.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import time

mpcdf_remove.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import os

mpcdf_set_as_branch.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import mpcdf_common

mpcdf_setup_home_project.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 from mpcdf_common import mpcdf_setup_subproject, project_meta, decode_it

mpcdf_setup_software_project.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import osc

mpcdf_setup_subproject.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 from mpcdf_common import mpcdf_setup_subproject

mpcdf_sync_projects.py

-#!/usr/bin/python2
 from __future__ import print_function
 
 import mpcdf_common