Drop the gabriel-samfira/sys fork

[axw]

Description of change

Not needed any more, since we're no longer
tied to Go 1.2.

QA steps

• Run the unit tests.
• Build the windows client and agent.

Documentation changes

None.

Bug reference

Fixes https://bugs.launchpad.net/juju/+bug/1470820

[axw]

$$merge$$

[jujubot]

Status: merge request accepted. Url: http://juju-ci.vapour.ws:8080/job/github-merge-juju

[jujubot]

Build failed: Generating tarball failed
build url: http://juju-ci.vapour.ws:8080/job/github-merge-juju/10295

[anastasiamac]

@axw
Build failed because:
gofmt is sad:
cmd/jujud/main_windows.go
service/windows/service_windows_test.go
service/windows/service_windows.go
service/windows/stubwinsvc_test.go

• EXIT_STATUS=1

[axw]

Oops, just a simple sed command it was not.

[axw]

$$merge$$

[jujubot]

Status: merge request accepted. Url: http://juju-ci.vapour.ws:8080/job/github-merge-juju

[jujubot]

Build failed: Tests failed
build url: http://juju-ci.vapour.ws:8080/job/github-merge-juju/10296

[axw]

$$oncemoreforgoodluck$$

[jujubot]

Status: merge request accepted. Url: http://juju-ci.vapour.ws:8080/job/github-merge-juju

[jujubot]

Build failed: Tests failed
build url: http://juju-ci.vapour.ws:8080/job/github-merge-juju/10299

[anastasiamac]

From windows log:
cannot find package "golang.org/x/sys/windows/registry" in any of:
C:\Go\src\golang.org\x\sys\windows\registry (from $GOROOT)
c:\users\admini~1\appdata\local\temp\tmpmpw_zd\gogo\src\golang.org\x\sys\windows\registry (from $GOPATH)

[axw]

$$merge$$

[jujubot]

Status: merge request accepted. Url: http://juju-ci.vapour.ws:8080/job/github-merge-juju