VERSION: remove erroneously committed VERSION file

Change-Id: I1134a4758b7e1a7da243c56f12ad9d2200c8ba41
Reviewed-on: https://go-review.googlesource.com/25414
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/VERSION b/VERSION
deleted file mode 100644
index 11a3439..0000000
--- a/VERSION
+++ /dev/null
@@ -1 +0,0 @@
-go1.7rc4
\ No newline at end of file