chromium: Remove some libs from system depenencies

Seems that these libraries aren't the ones Chromium is expecting to be,
so let's switch to use the bundled version of these libraries instead.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

pkgs/applications/networking/browsers/chromium/common.nix

@@ -57,8 +57,7 @@ let
     in attrs: concatStringsSep " " (attrValues (mapAttrs toFlag attrs));
 
   gnSystemLibraries = [
-    "flac" "libjpeg" "libpng" "libvpx" "libwebp" "libxml" "libxslt" "re2"
-    "snappy" "yasm" "zlib"
+    "flac" "libwebp" "libxml" "libxslt" "snappy" "yasm"
   ];
 
   opusWithCustomModes = libopus.override {
@@ -70,7 +69,7 @@ let
     libevent expat libjpeg snappy
     libpng libxml2 libxslt libcap
     xdg_utils yasm minizip libwebp
-    libusb1 re2 zlib libvpx
+    libusb1 re2 zlib
   ];
 
   # build paths and release info