Revert "drm: bridge: add DT bindings for TI ths8135"

This reverts commit 11bf4a8e which is
commit 2e644be30fcc08c736f66b60f4898d274d4873ab upstream.

Ben pointed out that there is no driver or device trees referencing this
device in 4.4-stable, so the patch should not be present there.

Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>