[release-branch.go1.15] go1.15

Change-Id: Id2262ff66e750e798ebe7ecfcc13d2653cb85b71
Reviewed-on: https://go-review.googlesource.com/c/go/+/247905
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

VERSION

diff --git a/VERSION b/VERSION
index e62f153..4b9a234 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.15rc2
\ No newline at end of file
+go1.15
\ No newline at end of file