Update libxslt to 1.1.28 (b/16673097)

Change-Id: I791142c8c36772ed41d85f718338bff24a99495b
diff --git a/libxslt-1.1.26.tar.gz b/libxslt-1.1.26.tar.gz
deleted file mode 100644
index 53f030a..0000000
--- a/libxslt-1.1.26.tar.gz
+++ /dev/null
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diff --git a/libxslt-1.1.28.tar.gz b/libxslt-1.1.28.tar.gz
new file mode 100644
index 0000000..78aacf9
--- /dev/null
+++ b/libxslt-1.1.28.tar.gz
Binary files differ