revert uncrypt back to dynamic linking, fix libs

Bug: 17029174, 17015157
Change-Id: I1d24f3402875dfb972daa6daef0f385baeff84e9
diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk
index ef3cead..8d0a737 100644
--- a/uncrypt/Android.mk
+++ b/uncrypt/Android.mk
@@ -20,11 +20,6 @@
 
 LOCAL_MODULE := uncrypt
 
-LOCAL_STATIC_LIBRARIES := \
-	libfs_mgr \
-	libcutils \
-	libc
-
-LOCAL_FORCE_STATIC_EXECUTABLE := true
+LOCAL_STATIC_LIBRARIES := libfs_mgr libcutils
 
 include $(BUILD_EXECUTABLE)