WebUI cleanup: Remove more obsolete dependencies to i18n_template.js.

Specifically removing from:
 - chrome://gcm-internals
 - chrome://network-errors/
 - chrome://signin-internals/
 - chrome://sync-internals
 - chrome://version
 - chrome://omaha

With the exception of chrome://omaha all other pages had already been
migrated away from i18n-values/i18n-content, but the dependency to
i18n_template.js had not been removed.

Bug: 677338
Change-Id: If3214e4044615d7aeaf68fdf6001febc379487f3
Reviewed-on: https://chromium-review.googlesource.com/c/1461716
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Auto-Submit: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#630751}
6 files changed