Move all patches to templates/$pkgname/patches.

There's no need to set patch_files/patch_args anymore, all patches
in this directory will be applied with -Np0 and they have .diff
or .patch (and .gz/.bz2) extension.

--HG--
extra : convert_revision : 8d516c033fe34db94ebbcc84c246e84fc96ed901

templates/libxcb/patches/configure_no_pthread_stubs.diff

@@ -0,0 +1,11 @@
+--- configure.orig	2009-04-16 23:17:47.331762217 +0200
++++ configure	2009-04-16 23:18:04.063768486 +0200
+@@ -21227,7 +21227,7 @@ else
+ echo "${ECHO_T}yes" >&6; }
+ 	:
+ fi
+-NEEDED="pthread-stubs xau >= 0.99.2"
++NEEDED="xau >= 0.99.2"
+ 
+ pkg_failed=no
+ { echo "$as_me:$LINENO: checking for NEEDED" >&5