Revert "D3D11: Futher optimize input layout cache." Causing assertion failures in WebGL CTS in debug. Example build: https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20Debug%20%28NVIDIA%29/builds/10215 This reverts commit 2ee580f10052c03a3a0e8c535bd7da82147133c3. Change-Id: Idffcd848adb6898f77b3c758b214eb31ca1f6e05 Reviewed-on: https://chromium-review.googlesource.com/285326 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>