cleanup go.sum (#1336)

Signed-off-by: Xiang Dai <[email protected]>

Author: daixiang0

go.sum

@@ -95,8 +95,6 @@ github.com/go-xmlfmt/xmlfmt v0.0.0-20191208150333-d5b6f63a941b h1:khEcpUM4yFcxg4
 github.com/go-xmlfmt/xmlfmt v0.0.0-20191208150333-d5b6f63a941b/go.mod h1:aUCEOzzezBEjDBbFBoSiya/gduyIiWYRP6CnSFIV8AM=
 github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
 github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
-github.com/gofrs/flock v0.7.1 h1:DP+LD/t0njgoPBvT5MJLeliUIVQR03hiKR6vezdwHlc=
-github.com/gofrs/flock v0.7.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/gofrs/flock v0.7.3 h1:I0EKY9l8HZCXTMYC4F80vwT6KNypV9uYKP3Alm/hjmQ=
 github.com/gofrs/flock v0.7.3/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@@ -357,9 +355,6 @@ github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An
 github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
 github.com/spf13/viper v1.7.1 h1:pM5oEahlgWv/WnHXpgbKz7iLIxRf65tye2Ci+XFK5sk=
 github.com/spf13/viper v1.7.1/go.mod h1:8WkrPz2fc9jxqZNCJI/76HCieCp4Q8HaLFoCha5qpdg=
-github.com/ssgreg/nlreturn v1.0.5 h1:K4QpNjmqF0OmJ+JyCXy3HIllKJf9ZpowLX2IIeOdMOA=
-github.com/ssgreg/nlreturn/v2 v2.0.2 h1:dDDKolU4T4RNuRfb9RKXVjlXFopG1K9UStsRw8nw958=
-github.com/ssgreg/nlreturn/v2 v2.0.2/go.mod h1:E/iiPB78hV7Szg2YfRgyIrk1AD6JVMTRkkxBiELzh2I=
 github.com/ssgreg/nlreturn/v2 v2.1.0 h1:6/s4Rc49L6Uo6RLjhWZGBpWWjfzk2yrf1nIW8m4wgVA=
 github.com/ssgreg/nlreturn/v2 v2.1.0/go.mod h1:E/iiPB78hV7Szg2YfRgyIrk1AD6JVMTRkkxBiELzh2I=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=