remove pinned intel drivers, update readme

Dockerfile

@@ -11,12 +11,6 @@ LABEL maintainer="thelamer"
 ARG DEBIAN_FRONTEND="noninteractive"
 ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
 
-# set Intel iHD driver versions
-# https://dgpu-docs.intel.com/releases/index.html
-ARG INTEL_LIBVA_VER="2.13.0+i643~u20.04"
-ARG INTEL_GMM_VER="21.3.3+i643~u20.04"
-ARG INTEL_iHD_VER="21.4.1+i643~u20.04"
-
 RUN \
   echo "**** install packages ****" && \
   apt-get update && \
@@ -25,8 +19,6 @@ RUN \
   echo "**** install jellyfin *****" && \
   curl -s https://repo.jellyfin.org/ubuntu/jellyfin_team.gpg.key | apt-key add - && \
   echo 'deb [arch=amd64] https://repo.jellyfin.org/ubuntu focal main' > /etc/apt/sources.list.d/jellyfin.list && \
-  curl -s https://repositories.intel.com/graphics/intel-graphics.key | apt-key add - && \
-  echo 'deb [arch=amd64] https://repositories.intel.com/graphics/ubuntu focal main' > /etc/apt/sources.list.d/intel-graphics.list && \
   if [ -z ${JELLYFIN_RELEASE+x} ]; then \
     JELLYFIN="jellyfin-server"; \
   else \
@@ -35,9 +27,6 @@ RUN \
   apt-get update && \
   apt-get install -y --no-install-recommends \
     at \
-    libva2="${INTEL_LIBVA_VER}" \
-    libigdgmm11="${INTEL_GMM_VER}" \
-    intel-media-va-driver-non-free="${INTEL_iHD_VER}" \
     ${JELLYFIN} \
     jellyfin-ffmpeg5 \
     jellyfin-web \