09:11 Tijl Coosemans (tijl) 

graphics/cairo: prepare for autoconf 2.71

- configure.ac contains GTK_DOC_CHECK and the new autoreconf runs
  gtkdocize in that case so add a build dependency.
- fix post-patch commands that patch files which are regenerated by
  autoreconf.
- remove old patches while here.

PR:		263454

    6fd90bd