conda: remove unnecessary pixman package

conda/pixman/build.sh

@@ -1,4 +0,0 @@
-#!/bin/bash
-./configure --prefix=$PREFIX
-make -j
-make install

conda/pixman/meta.yaml

@@ -1,16 +0,0 @@
-# This conda recipe comes from https://github.com/sandialabs/pixman-conda-recipe
-
-package:
-  name: pixman
-  version: "0.32.6"
-
-source:
-  fn: pixman-0.32.6.tar.gz
-  url: http://cairographics.org/releases/pixman-0.32.6.tar.gz
-
-build:
-  number: 0
-
-about:
-  home: http://cairographics.org
-  license: GNU Lesser General Public License (LGPL) version 2.1 or the Mozilla Public License (MPL) version 1.1 at your option.