go: Roll Goopfile, remove two no longer used packages.

go/Goopfile

Index: go/Goopfile
diff --git a/go/Goopfile b/go/Goopfile
index baace5b1f61b548a0d8c79d8c1ddc3fb56864183..1d70e27384a257ca253887b925d8d3d910f5110a 100644
--- a/go/Goopfile
+++ b/go/Goopfile
@@ -1,18 +1,16 @@
 github.com/ActiveState/tail #4b368d1590196ade29993d6a0896591403180bbd !https://chromium.googlesource.com/external/github.com/ActiveState/tail.git
-github.com/bradfitz/http2 #f8202bc903bda493ebba4aa54922d78430c2c42f !https://chromium.googlesource.com/external/github.com/bradfitz/http2.git
-github.com/coreos/etcd #6188933c81b3653a9dc1fe79ca1886c824e86b3b !https://chromium.googlesource.com/external/github.com/coreos/etcd.git
+github.com/coreos/etcd #a535cf2cad524ccb99dd267afea3fc2a75751515 !https://chromium.googlesource.com/external/github.com/coreos/etcd.git
 github.com/golang/glog #fca8c8854093a154ff1eb580aae10276ad6b1b5f !https://chromium.googlesource.com/external/github.com/golang/glog.git
 github.com/golang/lint #7b7f4364ff76043e6c3610281525fabc0d90f0e4 !https://chromium.googlesource.com/external/github.com/golang/lint.git
-github.com/golang/protobuf #8df8a93c670173cd1d8737a507a253b94f2d0b5a !https://chromium.googlesource.com/external/github.com/golang/protobuf.git
-github.com/google/google-api-go-client/google-api-go-generator #ebc7799043c9e8d3c71fedcb958ac491caad03d4 !https://code.googlesource.com/google-api-go-client.git
+github.com/golang/protobuf #0c959e80d8acfedb1ecd50c9f14a58cee287dc95 !https://chromium.googlesource.com/external/github.com/golang/protobuf.git
+github.com/google/google-api-go-client/google-api-go-generator #09c6521081a8b11e2c277b747b24324cfdfa5c25 !https://code.googlesource.com/google-api-go-client.git
 github.com/GoogleCloudPlatform/go-endpoints/endpoints #30cbe84e0d7ff4253cd6f89c39a53d3e60b98088 !https://chromium.googlesource.com/external/github.com/GoogleCloudPlatform/go-endpoints.git
 github.com/gorhill/cronexpr #a557574d6c024ed6e36acc8b610f5f211c91568a !https://chromium.googlesource.com/external/github.com/gorhill/cronexpr.git
-github.com/howeyc/fsnotify #4894fe7efedeeef21891033e1cce3b23b9af7ad2 !https://chromium.googlesource.com/external/github.com/howeyc/fsnotify.git
 github.com/jtolds/gls #9a4a02dbe491bef4bab3c24fd9f3087d6c4c6690 !https://chromium.googlesource.com/external/github.com/jtolds/gls.git
 github.com/kardianos/osext #6e7f843663477789fac7c02def0d0909e969b4e5 !https://chromium.googlesource.com/external/github.com/kardianos/osext.git
 github.com/kisielk/errcheck #a4f12b02dc24fba8e9cd3706f3c35795616f2687 !https://chromium.googlesource.com/external/github.com/kisielk/errcheck.git
 github.com/kisielk/gotool #58a7a198f2ec6ea7af221fd216e7f559d663ce02 !https://chromium.googlesource.com/external/github.com/kisielk/gotool.git
-github.com/klauspost/compress #3627ee40db8a49773cde09fe3404692fd33c5ae4 !https://chromium.googlesource.com/external/github.com/klauspost/compress.git
+github.com/klauspost/compress #eda62270033ec5035edb7fa91c28bd63e60bf69c !https://chromium.googlesource.com/external/github.com/klauspost/compress.git
 github.com/klauspost/cpuid #50eec7f95054178a12a2ed5240f16530a5c6e622 !https://chromium.googlesource.com/external/github.com/klauspost/cpuid.git
 github.com/klauspost/crc32 #f8d2e12057f7ef26ae42ecfa42697f4bdc32d7eb !https://chromium.googlesource.com/external/github.com/klauspost/crc32.git
 github.com/kr/pretty #e6ac2fc51e89a3249e82157fa0bb7a18ef9dd5bb !https://chromium.googlesource.com/external/github.com/kr/pretty.git
@@ -29,20 +27,20 @@ github.com/mgutz/ansi #c286dcecd19ff979eeb73ea444e479b903f2cfcb !https://chromiu
 github.com/olekukonko/ts #ecf753e7c962639ab5a1fb46f7da627d4c0a04b8 !https://chromium.googlesource.com/external/github.com/olekukonko/ts.git
 github.com/op/go-logging #e8d5414f0947014548c2334044a0fac13187dfee !https://chromium.googlesource.com/external/github.com/op/go-logging.git
 github.com/sergi/go-diff #ffccea18eeb30a700e65bdf8a9f99456e5d254fa !https://chromium.googlesource.com/external/github.com/sergi/go-diff.git
-github.com/smartystreets/assertions #e20084b55acef0ee9b0aa38cad708f830b9537ad !https://chromium.googlesource.com/external/github.com/smartystreets/assertions.git
+github.com/smartystreets/assertions #52d9726e53763b138bfe32bfa7d732bb2ad3f03e !https://chromium.googlesource.com/external/github.com/smartystreets/assertions.git
 github.com/smartystreets/goconvey #a29728e4d70bb23e436d03bee49b1793e70a9352 !https://chromium.googlesource.com/external/github.com/smartystreets/goconvey.git
 github.com/steveyen/go-slab #2f82a688478741b7843a5575749f726d4b3f92b1 !https://chromium.googlesource.com/external/github.com/steveyen/go-slab.git
 github.com/texttheater/golang-levenshtein #9ab79d77423b5c17e36d1f02838fe9e788678ff0 !https://chromium.googlesource.com/external/github.com/texttheater/golang-levenshtein.git
 github.com/yosuke-furukawa/json5 #07fdad7a3c55f2098b172ea58890470c07f7d392 !https://chromium.googlesource.com/external/github.com/yosuke-furukawa/json5.git
-golang.org/x/crypto #aedad9a179ec1ea11b7064c57cbc6dc30d7724ec
-golang.org/x/net #db8e4de5b2d6653f66aea53094624468caad15d2
-golang.org/x/oauth2 #d5ff5ab876fbb2a8c14cc5470db12f6b60fb90ef
-golang.org/x/text #7d45f341367c736d863bda0371545fe388222956
-golang.org/x/tools #5a90b2958f12ca0f046ffe2eb1523c5896af5dae
-google.golang.org/api #ebc7799043c9e8d3c71fedcb958ac491caad03d4
-google.golang.org/appengine #64b9ee471d66150c6065d945a7acf87e718d40c1 !https://chromium.googlesource.com/external/github.com/golang/appengine.git
-google.golang.org/cloud #b6ddb0c0087d1e898fc199445c27302974c31d28
-google.golang.org/grpc #66a18cfe4f33281f217939a1581575b723b72f97 !https://chromium.googlesource.com/external/github.com/grpc/grpc-go.git
+golang.org/x/crypto #59a4410d829a8bb774b02b56d4aeab633414f233
+golang.org/x/net #c2528b2dd8352441850638a8bb678c2ad056fd3e
+golang.org/x/oauth2 #3cab960fb9cdffabf543e8bae3a377f29e82b163
+golang.org/x/text #601048ad6acbab6cedd582db09b8c4839ff25b15
+golang.org/x/tools #e1d85eb8a3a8d29c824a9f1d33a8a78a8ab90b78
+google.golang.org/api #09c6521081a8b11e2c277b747b24324cfdfa5c25
+google.golang.org/appengine #0b869404e81685c5f3f2e5126bc2309215c7ad72 !https://chromium.googlesource.com/external/github.com/golang/appengine.git
+google.golang.org/cloud #c7e49e47d60cc26958b9d52bc612d384ba8045f1
+google.golang.org/grpc #f3de7c238c93bde3228d59a428ba97edf0d81c57 !https://chromium.googlesource.com/external/github.com/grpc/grpc-go.git
 gopkg.in/fsnotify.v0 #ea925a0a47d225b2ca7f9932b01d2ed4f3ec74f6 !https://chromium.googlesource.com/external/github.com/go-fsnotify/fsnotify.git
 gopkg.in/tomb.v1 #dd632973f1e7218eb1089048e0798ec9ae7dceb8 !https://chromium.googlesource.com/external/github.com/go-tomb/tomb.git
-gopkg.in/yaml.v2 #7ad95dd0798a40da1ccdff6dff35fd177b5edf40 !https://chromium.googlesource.com/external/github.com/go-yaml/yaml.git
+gopkg.in/yaml.v2 #53feefa2559fb8dfa8d81baad31be332c97d6c77 !https://chromium.googlesource.com/external/github.com/go-yaml/yaml.git