i965: Remove duplicate check on platform in hybrid codec proxy
i965: Remove duplicate check on platform in hybrid codec proxy

Check is made in hybrid driver for respectve platforms.

Signed-off-by: Sean V Kelley <2e220d3765e3e059981b3c8d241463f952b3ee5f@posteo.de>

chenxianqin/vaapi-intel-driver,01org/iotg-lin-gfx-va-driver,chenxianqin/vaapi-intel-driver,uartie/vaapi-intel-driver,uartie/vaapi-intel-driver,uartie/vaapi-intel-driver,chenxianqin/vaapi-intel-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,chenxianqin/vaapi-intel-driver,uartie/vaapi-intel-driver,01org/iotg-lin-gfx-va-driver,uartie/vaapi-intel-driver,chenxianqin/vaapi-intel-driver