Remove obsolete project

Change-Id: I91ca5e31a65f7710a156f026aa12a070b24be926
diff --git a/default.xml b/default.xml
index 5240b78..8e09f33 100644
--- a/default.xml
+++ b/default.xml
@@ -251,7 +251,6 @@
   <project path="external/sepolicy" name="platform/external/sepolicy" groups="pdk" />
   <project path="external/sfntly" name="platform/external/sfntly" groups="pdk-cw-fs,qcom_msm8x26" />
   <project path="external/skia" name="platform/external/skia" groups="pdk-cw-fs,qcom_msm8x26" />
-  <project path="external/smack" name="platform/external/smack" groups="pdk-cw-fs" />
   <project path="external/smali" name="platform/external/smali" groups="pdk-cw-fs" />
   <project path="external/sonivox" name="platform/external/sonivox" groups="pdk" />
   <project path="external/speex" name="platform/external/speex" groups="pdk" />