go-1.10.4-bp150.2.3.1

- Remove golang(API) provides, since the go<ver> packages now provide this and
  providing it here causes issues when building under SLE12 (not to mention
  being confusing -- since golang(API) is used to pin versions). boo#1114209

- Update to version 1.10.4:
  * go1.10.4 (released 2018/08/24) includes fixes to the go command,
    linker, and the net/http, mime/multipart, ld/macho, bytes, and
    strings packages. See the Go 1.10.4 milestone on our issue
    tracker for details.

- Update to version1.10.3:
  * go1.10.3 (released 2018/06/05) includes fixes to the go command,
    and the crypto/tls, crypto/x509, and strings packages. In particular,
    it adds minimal support to the go command for the vgo transition.
    See the Go 1.10.3 milestone on our issue tracker for details.

- Update to version 1.10.2:
  * includes fixes to the compiler, linker, and go command.
- Changes in version 1.10.1:
  * includes fixes to the compiler, runtime, and the archive/zip,
    crypto/tls, crypto/x509, encoding/json, net, net/http, and net/http/pprof packages.
- Changes in version 1.10:
  * This release improves caching of built packages, adds caching of successful
    test results, runs vet automatically during tests, and permits passing string
    values directly between Go and C using cgo. A new compiler option whitelist may
    cause unexpected invalid flag errors in code that built successfully with older releases.

- Provide golang(API) = 1.9, so that this symbol can be required
  and provided, as preferred one, by the unversioned go package.