Add gelf log driver plugin to Windows build

Signed-off-by: Mike Estes <mle_ii@yahoo.com>

daemon/logdrivers_windows.go

@@ -6,6 +6,7 @@ import (
 	_ "github.com/docker/docker/daemon/logger/awslogs"
 	_ "github.com/docker/docker/daemon/logger/etwlogs"
 	_ "github.com/docker/docker/daemon/logger/fluentd"
+	_ "github.com/docker/docker/daemon/logger/gelf"
 	_ "github.com/docker/docker/daemon/logger/jsonfilelog"
 	_ "github.com/docker/docker/daemon/logger/logentries"
 	_ "github.com/docker/docker/daemon/logger/splunk"

daemon/logger/gelf/gelf.go

@@ -1,5 +1,3 @@
-// +build linux
-
 // Package gelf provides the log driver for forwarding server logs to
 // endpoints that support the Graylog Extended Log Format.
 package gelf

daemon/logger/gelf/gelf_unsupported.go

@@ -1,3 +0,0 @@
-// +build !linux
-
-package gelf