Cleanup doc Makefile

doc/Makefile

-PDFIMAGES = $(shell ls *.pdf)
-PNGIMAGES = ${PDFIMAGES:.pdf=.png}
-HUGEIMAGES = $(shell find . -maxdepth 1 -name "*.pdf"  -size +10000k)
-ORIGIMAGES = ${HUGEIMAGES:.pdf=.pdf-orig}
-
-#PNGCONV = gm convert -density 1200 -resample 50 -trim -antialias -quality 9 -filter Cubic
-PNGCONV = pdftoppm -png -singlefile -r 96 -freetype yes -aa yes -aaVector yes
-PDFCONV = gm convert
-
-#all: $(ORIGIMAGES) $(PNGIMAGES)
 all:
 	sphinx-build -E -b html . build
 
-# %.pdf-orig: %.pdf
-# 	$(PNGCONV) $< > $@-tmp.png
-# 	$(PDFCONV) $@-tmp.png $@
-# 	rm $@-tmp.png
-
-# %.png: %.pdf
-# 	test -d $<-orig && $(PNGCONV) $<-orig > $@ || true
-# 	test -d $<-orig || $(PNGCONV) $< > $@ || true
-
 latex:
 	sphinx-build -E -b latex . build
 
 test:
 	OMP_NUM_THREADS=1 sphinx-build -b doctest . build
 
-#push:
-#	rsync -rEvpLz build/* root@skewed.de:/var/www/graph-tool-doc/
-
-#push-dev:
-#	rsync -rEvpLz build/* root@skewed.de:/var/www/graph-tool-doc/dev/
-
 clean:
 	rm -rf build