Remove guava dependency to speed up build.

Change-Id: I4cee4b6324e72e94c1241e10f3cdc507d65512cd
diff --git a/Android.mk b/Android.mk
index 738cea0..22c7143 100644
--- a/Android.mk
+++ b/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_JAVA_LIBRARIES := bouncycastle telephony-common
-LOCAL_STATIC_JAVA_LIBRARIES := guava android-support-v4 android-support-v13 jsr305
+LOCAL_STATIC_JAVA_LIBRARIES := android-support-v4 android-support-v13 jsr305
 
 LOCAL_MODULE_TAGS := optional