Cleanup vendor folder and modules

Removed go.sum entries for the following modules after verifying that
the code in the repository and the vendor folder do not differ.

    github.com/mwitkow/[email protected]
    github.com/hashicorp/[email protected]
    github.com/apache/[email protected]

See #708 for details.

go.mod

@@ -103,4 +103,8 @@ require (
 	google.golang.org/grpc v1.16.0
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	gopkg.in/vmihailenco/msgpack.v2 v2.9.1 // indirect
+	labix.org/v2/mgo v0.0.0-20140701140051-000000000287 // indirect
+	launchpad.net/gocheck v0.0.0-20140225173054-000000000087 // indirect
 )
+
+go 1.13

go.sum

@@ -13,7 +13,7 @@ github.com/Shopify/sarama v1.19.0 h1:9oksLxC6uxVPHPVYUmq6xhr1BOF/hHobWH2UzO67z1s
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.3+incompatible h1:awiJqUYH4q4OmoBiRccJykjd7B+w0loJi2keSna4X/M=
 github.com/Shopify/toxiproxy v2.1.3+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/apache/thrift v0.0.0-20181028152738-da1169d75b15 h1:QMpU5E8/FWWRvfhkkX/R6hwoMbvVAV89qdKV/vfJogw=
+github.com/apache/thrift v0.0.0-20181028152738-da1169d75b15 h1:GGI45yUJ942DZsI3uodzVabeRUbxPsioScY/EmmE5ek=
 github.com/apache/thrift v0.0.0-20181028152738-da1169d75b15/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da h1:8GUt8eRujhVEGZFFEjBj46YV4rDjvGrNxb0KMWYkL2I=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@@ -107,7 +107,7 @@ github.com/hashicorp/go-multierror v0.0.0-20150916205742-d30f09973e19 h1:gb61U/o
 github.com/hashicorp/go-multierror v0.0.0-20150916205742-d30f09973e19/go.mod h1:JMRHfdO9jKNzS/+BTlxCjKNQHg/jZAft8U7LloJvN7I=
 github.com/hashicorp/go-retryablehttp v0.5.0 h1:aVN0FYnPwAgZI/hVzqwfMiM86ttcHTlQKbBVeVmXPIs=
 github.com/hashicorp/go-retryablehttp v0.5.0/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
-github.com/hashicorp/go-rootcerts v0.0.0-20160503143440-6bb64b370b90 h1:9HVkPxOpo+yO93Ah4yrO67d/qh0fbLLWbKqhYjyHq9A=
+github.com/hashicorp/go-rootcerts v0.0.0-20160503143440-6bb64b370b90 h1:VBj0QYQ0u2MCJzBfeYXGexnAl17GsH1yidnoxCqqD9E=
 github.com/hashicorp/go-rootcerts v0.0.0-20160503143440-6bb64b370b90/go.mod h1:o4zcYY1e0GEZI6eSEr+43QDYmuGglw1qSO6qdHUHCgg=
 github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86 h1:7YOlAIO2YWnJZkQp7B5eFykaIY7C9JndqAFQyVV5BhM=
 github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerXegt+ozgdvDeDU=
@@ -160,7 +160,7 @@ github.com/mitchellh/mapstructure v0.0.0-20160212031839-d2dd02622084 h1:Z2EJ6SUY
 github.com/mitchellh/mapstructure v0.0.0-20160212031839-d2dd02622084/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/reflectwalk v1.0.0 h1:9D+8oIskB4VJBN5SFlmc27fSlIBZaov1Wpk/IfikLNY=
 github.com/mitchellh/reflectwalk v1.0.0/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
-github.com/mwitkow/grpc-proxy v0.0.0-20181017164139-0f1106ef9c76 h1:LxaK681Aane3f53b4qVTXXq83lL9fWwBTaaZOf9VizA=
+github.com/mwitkow/grpc-proxy v0.0.0-20181017164139-0f1106ef9c76 h1:0xuRacu/Zr+jX+KyLLPPktbwXqyOvnOPUQmMLzX1jxU=
 github.com/mwitkow/grpc-proxy v0.0.0-20181017164139-0f1106ef9c76/go.mod h1:x5OoJHDHqxHS801UIuhqGl6QdSAEJvtausosHSdazIo=
 github.com/ncw/swift v1.0.42 h1:ztvRb6hs52IHOcaYt73f9lXYLIeIuWgdooRDhdyllGI=
 github.com/ncw/swift v1.0.42/go.mod h1:23YIA4yWVnGwv2dQlN4bB7egfYX6YLn0Yo/S6zZO/ZM=
@@ -287,3 +287,7 @@ gopkg.in/vmihailenco/msgpack.v2 v2.9.1/go.mod h1:/3Dn1Npt9+MYyLpYYXjInO/5jvMLamn
 gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+labix.org/v2/mgo v0.0.0-20140701140051-000000000287 h1:L0cnkNl4TfAXzvdrqsYEmxOHOCv2p5I3taaReO8BWFs=
+labix.org/v2/mgo v0.0.0-20140701140051-000000000287/go.mod h1:Lg7AYkt1uXJoR9oeSZ3W/8IXLdvOfIITgZnommstyz4=
+launchpad.net/gocheck v0.0.0-20140225173054-000000000087 h1:Izowp2XBH6Ya6rv+hqbceQyw/gSGoXfH/UPoTGduL54=
+launchpad.net/gocheck v0.0.0-20140225173054-000000000087/go.mod h1:hj7XX3B/0A+80Vse0e+BUHsHMTEhd0O4cpUHr/e/BUM=