remove git-python code from fontbakery-build.py (issue #691)
remove git-python code from fontbakery-build.py (issue #691)

graphicore/fontbakery,googlefonts/fontbakery,graphicore/fontbakery,moyogo/fontbakery,googlefonts/fontbakery,moyogo/fontbakery,graphicore/fontbakery,moyogo/fontbakery,googlefonts/fontbakery