Some cleanup.

1 job for rewrite in 2 minutes and 48 seconds
Status Job ID Name Coverage
  Build
failed #105988132
brew cocoapods java_9 xcode_9
build_project

00:02:48

 
Name Stage Failure
failed
build_project Build
#include <libxml/parser.h>
^~~~~~~~~~~~~~~~~
1 error generated.
In file included from src/mpw-tests.c:38:
src/mpw-tests-util.h:27:10: fatal error: 'libxml/parser.h' file not found
#include <libxml/parser.h>
^~~~~~~~~~~~~~~~~
1 error generated.
ERROR: Job failed: exit status 1