Revert "In D3D11, check for 16-bit texture support and use if possible" Causing failures on Windows 8 bots running ES CTS and Windows 7 Intel bot running angle tests. Example failures: https://build.chromium.org/p/chromium.gpu.fyi/builders/Win8%20Release%20%28NVIDIA%29/builds/14442 https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20Release%20%28Intel%29/builds/11627 This reverts commit d63f08fcc32ea17bac2b025f0ad3261664ff79c9. Change-Id: I841aee5fb0973432f249277126424b909d5b3e17 Reviewed-on: https://chromium-review.googlesource.com/273416 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>