Revert "Hook vts bits to build."

This reverts commit 9b7dd588b3e33da91e09ad0d5721f184a01142e0.

Change-Id: I53c2e337cdd631c7958639eea975e51bb9023ebd

default.xml

@@ -221,11 +221,9 @@
   <project path="external/libweave" name="platform/external/libweave" groups="pdk" />
   <project path="external/libxml2" name="platform/external/libxml2" groups="pdk,libxml2" />
   <project path="external/libyuv" name="platform/external/libyuv" groups="pdk,libyuv" />
-  <project path="external/linux-kselftest" name="platform/external/linux-kselftest" groups="vts,pdk" />
   <project path="external/littlemock" name="platform/external/littlemock" groups="pdk" />
   <project path="external/lld" name="platform/external/lld" groups="pdk" />
   <project path="external/llvm" name="platform/external/llvm" groups="pdk" />
-  <project path="external/ltp" name="platform/external/ltp" groups="vts,pdk" />
   <project path="external/lz4" name="platform/external/lz4" groups="pdk" />
   <project path="external/lzma" name="platform/external/lzma" groups="pdk" />
   <project path="external/markdown" name="platform/external/markdown" groups="pdk" />
@@ -530,11 +528,6 @@
   <project path="system/tpm" name="platform/system/tpm" />
   <project path="system/update_engine" name="platform/system/update_engine" groups="pdk" />
   <project path="system/vold" name="platform/system/vold" groups="pdk" />
-  <project path="test/vts" name="platform/test/vts" groups="vts,pdk" />
-  <project path="test/vts-testcase/fuzz" name="platform/test/vts-testcase/fuzz" groups="vts,pdk" />
-  <project path="test/vts-testcase/kernel" name="platform/test/vts-testcase/kernel" groups="vts,pdk" />
-  <project path="test/vts-testcase/performance" name="platform/test/vts-testcase/performance" groups="vts,pdk" />
-  <project path="test/vts-testcase/security" name="platform/test/vts-testcase/security" groups="vts,pdk" />
   <project path="toolchain/binutils" name="toolchain/binutils" />
   <project path="tools/adt/idea" name="platform/tools/adt/idea" groups="notdefault,tools" />
   <project path="tools/apksig" name="platform/tools/apksig" groups="pdk,tradefed" />