Revert "security tests: add ctstestserver dependency"

This reverts commit 85002572276be698f0e797dd5dc3d1d4ccf633dd.

Change-Id: I30d6f4ae38977334a5c2611047467d6862e66643
diff --git a/tests/tests/security/Android.mk b/tests/tests/security/Android.mk
index 62036fd..6ece50e 100644
--- a/tests/tests/security/Android.mk
+++ b/tests/tests/security/Android.mk
@@ -18,7 +18,7 @@
 
 LOCAL_MODULE_TAGS := tests
 
-LOCAL_STATIC_JAVA_LIBRARIES := ctstestrunner guava ctstestserver
+LOCAL_STATIC_JAVA_LIBRARIES := ctstestrunner guava
 
 LOCAL_JNI_SHARED_LIBRARIES := libctssecurity_jni