Do not generate .pyo files

By default, the Python installation byte-compiles all modules in two
forms: the normal bytecode (.pyc) and an optimized bytecode (.pyo).

According to
http://www.network-theory.co.uk/docs/pytut/CompiledPythonfiles.html,
the optimization do not do anything useful, and generating both the
"non-optimized" and "optimized" bytecode variants takes time.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 Makefile.pre.in |    9 ---------
 1 file changed, 9 deletions(-)

Index: Python-2.7.2/Makefile.pre.in
===================================================================
--- Python-2.7.2.orig/Makefile.pre.in
+++ Python-2.7.2/Makefile.pre.in
@@ -934,20 +934,11 @@
 		-d $(LIBDEST) -f \
 		-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \
 		$(DESTDIR)$(LIBDEST)
-	PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
-		$(PYTHON_FOR_BUILD) -Wi -tt -O $(DESTDIR)$(LIBDEST)/compileall.py \
-		-d $(LIBDEST) -f \
-		-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \
-		$(DESTDIR)$(LIBDEST)
 	-PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
 		$(PYTHON_FOR_BUILD) -Wi -t $(DESTDIR)$(LIBDEST)/compileall.py \
 		-d $(LIBDEST)/site-packages -f \
 		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
 	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
-		$(PYTHON_FOR_BUILD) -Wi -t -O $(DESTDIR)$(LIBDEST)/compileall.py \
-		-d $(LIBDEST)/site-packages -f \
-		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
-	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
 		$(PYTHON_FOR_BUILD) -Wi -t -c "import lib2to3.pygram, lib2to3.patcomp;lib2to3.patcomp.PatternCompiler()"
 
 # Create the PLATDIR source directory, if one wasn't distributed..