Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/bind/testdata/structs.go.golden

Index: third_party/go/src/golang.org/x/mobile/bind/testdata/structs.go.golden
diff --git a/third_party/go/src/golang.org/x/mobile/bind/testdata/structs.go.golden b/third_party/go/src/golang.org/x/mobile/bind/testdata/structs.go.golden
deleted file mode 100644
index b32ec0d5b325a3198ba928c9a4938fad23f84979..0000000000000000000000000000000000000000
--- a/third_party/go/src/golang.org/x/mobile/bind/testdata/structs.go.golden
+++ /dev/null
@@ -1,63 +0,0 @@
-// Package go_structs is an autogenerated binder stub for package structs.
-//   gobind -lang=go structs
-//
-// File is generated by gobind. Do not edit.
-package go_structs
-
-import (
-	"golang.org/x/mobile/bind/seq"
-	"structs"
-)
-
-const (
-	proxySDescriptor = "go.structs.S"
-	proxySXGetCode   = 0x00f
-	proxySXSetCode   = 0x01f
-	proxySYGetCode   = 0x10f
-	proxySYSetCode   = 0x11f
-	proxySSumCode    = 0x00c
-)
-
-type proxyS seq.Ref
-
-func proxySXSet(out, in *seq.Buffer) {
-	ref := in.ReadRef()
-	v := in.ReadFloat64()
-	ref.Get().(*structs.S).X = v
-}
-
-func proxySXGet(out, in *seq.Buffer) {
-	ref := in.ReadRef()
-	v := ref.Get().(*structs.S).X
-	out.WriteFloat64(v)
-}
-
-func proxySYSet(out, in *seq.Buffer) {
-	ref := in.ReadRef()
-	v := in.ReadFloat64()
-	ref.Get().(*structs.S).Y = v
-}
-
-func proxySYGet(out, in *seq.Buffer) {
-	ref := in.ReadRef()
-	v := ref.Get().(*structs.S).Y
-	out.WriteFloat64(v)
-}
-
-func proxySSum(out, in *seq.Buffer) {
-	ref := in.ReadRef()
-	v := ref.Get().(*structs.S)
-	res := v.Sum()
-	out.WriteFloat64(res)
-}
-
-func init() {
-	seq.Register(proxySDescriptor, proxySXSetCode, proxySXSet)
-	seq.Register(proxySDescriptor, proxySXGetCode, proxySXGet)
-	seq.Register(proxySDescriptor, proxySYSetCode, proxySYSet)
-	seq.Register(proxySDescriptor, proxySYGetCode, proxySYGet)
-	seq.Register(proxySDescriptor, proxySSumCode, proxySSum)
-}
-
-func init() {
-}