Remove bucklets/local_jar.bucklet soft-link to removed lib/local.defs

Since the latter was removed (by commit 455ed9c), the former links to
that now-missing file; hence its removal.

Change-Id: I4eba7bf4788c52143ab5a72c8c337ee9aa3c74ff
diff --git a/bucklets/local_jar.bucklet b/bucklets/local_jar.bucklet
deleted file mode 120000
index 8904824..0000000
--- a/bucklets/local_jar.bucklet
+++ /dev/null
@@ -1 +0,0 @@
-../lib/local.defs
\ No newline at end of file