go.sum: temporarily delete go.sum file

Change-Id: I052b54d6c7843cd3dbb7d4da00cea6aa0fc06212
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/167000
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
diff --git a/go.mod b/go.mod
index 1c2c7c5..2c05acb 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/golang/protobuf/v2
 
 require (
-	github.com/golang/protobuf v1.2.1-0.20190311202412-6ce2da42b4ff
+	github.com/golang/protobuf v1.2.1-0.20190311214837-379b5a7ff78a
 	github.com/google/go-cmp v0.2.1-0.20181101181452-745b8ec83783
 )
diff --git a/go.sum b/go.sum
deleted file mode 100644
index 801d985..0000000
--- a/go.sum
+++ /dev/null
@@ -1,3 +0,0 @@
-github.com/golang/protobuf/v2 v2.0.0-20181127193627-d7e97bc71bcb/go.mod h1:MgUD+N3FwzDmj2CdMsT5ap7K7jx+c9cQDQ7fVhmH+Xw=
-github.com/google/go-cmp v0.2.1-0.20181101181452-745b8ec83783 h1:wVZ6laEGf86tNDTpR5mxFyFIclJJiXCxuJhcQKnsOHk=
-github.com/google/go-cmp v0.2.1-0.20181101181452-745b8ec83783/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=