all: remove 2 hidden files, leave just README

These were missed in CL 324270. These files aren't needed
and can be safely removed. This way they won't become out
of date, and they won't invite maintenance.

Change-Id: Id2fb4ed3345836994d0d3b6f9adbcf5f6497ac90
Reviewed-on: https://go-review.googlesource.com/c/blog/+/793340
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Bypass: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>

.gcloudignore

diff --git a/.gcloudignore b/.gcloudignore
deleted file mode 100644
index 0030d4f..0000000
--- a/.gcloudignore
+++ /dev/null
@@ -1,2 +0,0 @@
-.gcloudignore
-.git

.gitattributes

diff --git a/.gitattributes b/.gitattributes
deleted file mode 100644
index d2f212e..0000000
--- a/.gitattributes
+++ /dev/null
@@ -1,10 +0,0 @@
-# Treat all files in this repo as binary, with no git magic updating
-# line endings. Windows users contributing to Go will need to use a
-# modern version of git and editors capable of LF line endings.
-#
-# We'll prevent accidental CRLF line endings from entering the repo
-# via the git-review gofmt checks.
-#
-# See golang.org/issue/9281
-
-* -text