[Tizen] Get rid of the crosswalk-emulator-support package.

crosswalk-emulator-support was used during the Tizen 2.x times because the
Tizen emulator's GL implementation did not work as expected and we thus had
to fall back to libosmesa.

Now that Tizen 2.x is a thing of the past, we can get rid of it. If the
Tizen 3 emulator still has problems, we are now in the position to try to
fix it.
Merge pull request #1702 from rakuco/goodbye-emulator-support

[Tizen] Get rid of the crosswalk-emulator-support package.
Bump Crosswalk to 34.0.1847.45

This includes build fixes deu to renamings in Chromium, as well as the
following squashed commits:

Author: Thiago Marcos P. Santos <thiago.santos@intel.com>:
- [SysApps] Fix component build
- [SysApps] Update StorageMonitor usage : Now we need
  to ::Create() the instance explicitly before using.

Author: Shiliu Wang <shiliu.wang@intel.com>:
- [Android] Register JNI entries while libxwalkcore.so is loaded

  Upstream moves RegisterLibraryLoaderEntryHook from content
  to base, but the real registration is still done at
  content::LibraryLoaded, which is missed in xwalk.

  Add the callback back to fix the issue.