Remove hosttestlib

It shouldn't really be needed anymore

Test: make cts
Bug: 160907589
Exempt-From-Owner-Approval: clean up
Change-Id: I3d54dd7ffd66c0f6d8d2ed343a8d8c4ecdecc9cf
diff --git a/build/compatibility_test_suite.mk b/build/compatibility_test_suite.mk
index 01a2fff..c980951 100644
--- a/build/compatibility_test_suite.mk
+++ b/build/compatibility_test_suite.mk
@@ -42,7 +42,7 @@
 LOCAL_JAVA_RESOURCE_FILES += $(suite_info_prop)
 
 # Add the base libraries
-LOCAL_JAVA_LIBRARIES += tradefed loganalysis hosttestlib compatibility-host-util
+LOCAL_JAVA_LIBRARIES += tradefed loganalysis compatibility-host-util
 
 LOCAL_MODULE_TAGS := optional