Remove unused project external/libppp.
Bug: 16795898
diff --git a/default.xml b/default.xml
index 59431bc..fb7d742 100644
--- a/default.xml
+++ b/default.xml
@@ -176,7 +176,6 @@
<project path="external/libpcap" name="platform/external/libpcap" />
<project path="external/libphonenumber" name="platform/external/libphonenumber" />
<project path="external/libpng" name="platform/external/libpng" groups="pdk" />
- <project path="external/libppp" name="platform/external/libppp" />
<project path="external/libseccomp-helper" name="platform/external/libseccomp-helper" />
<project path="external/libselinux" name="platform/external/libselinux" groups="pdk" />
<project path="external/libsepol" name="platform/external/libsepol" groups="pdk" />