drop libsamplerate, should to be fixed in libpulse

PKGBUILD

@@ -9,7 +9,7 @@ arch=('i686' 'x86_64')
 url="http://live.gnome.org/GnomeShell"
 license=('GPL2')
 depends=('mutter' 'gjs' 'libcroco' 'gnome-bluetooth' 'gnome-desktop' 'gnome-menus' 'libpulse' 'folks' 'telepathy-logger' 'networkmanager' 'caribou')
-makedepends=('intltool' 'gnome-doc-utils' 'libsamplerate')
+makedepends=('intltool' 'gnome-doc-utils')
 optdepends=('network-manager-applet: shell integration for networkmanager')
 options=('!libtool' '!emptydirs')
 install=gnome-shell.install