Makefile: Removal off unnecessary config files from Makefile

* Removed the following files from the Makefile:
  contrast_out_config.py springer_config.py oup_config.py

Signed-off-by: Martin Vesper <martin.vesper@cern.ch>
Merge pull request #10 from mvesper/remove_old_configs_from_makefile

Makefile: Removal off unnecessary config files from Makefile