Remove NOTICE symlink.

The .bp file explicitly points to upstream's COPYING file.

Test: treehugger
Change-Id: I07032ea512f785aeddf1a19f83077c64f8cfb751
diff --git a/NOTICE b/NOTICE
deleted file mode 120000
index d24842f..0000000
--- a/NOTICE
+++ /dev/null
@@ -1 +0,0 @@
-COPYING
\ No newline at end of file