Revert "Add workaround for issue with qemu on GHA runners"

The workaround doesn't work.

This reverts commit bc86113.

docker/datanode/Dockerfile

@@ -1,6 +1,3 @@
-# Workaround for issue: https://github.com/docker/setup-qemu-action/issues/198
-FROM --platform=$BUILDPLATFORM multiarch/qemu-user-static AS qemu
-
 FROM ubuntu:22.04
 
 # Build time variables - not persistent in the container image
@@ -33,9 +30,6 @@ ENV GDN_USER=graylog
 
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
-# Workaround for issue: https://github.com/docker/setup-qemu-action/issues/198
-COPY --from=qemu /usr/bin/qemu-*-static /usr/bin/
-
 RUN groupadd -r "$GDN_GROUP" \
     && useradd --no-log-init -r \
       -s "/usr/sbin/nologin" \

docker/enterprise/Dockerfile

@@ -1,6 +1,3 @@
-# Workaround for issue: https://github.com/docker/setup-qemu-action/issues/198
-FROM --platform=$BUILDPLATFORM multiarch/qemu-user-static AS qemu
-
 # layer for download and verifying
 FROM ubuntu:jammy as graylog-downloader
 
@@ -26,9 +23,6 @@ ARG DOWNLOAD_URL=none
 
 WORKDIR /tmp
 
-# Workaround for issue: https://github.com/docker/setup-qemu-action/issues/198
-COPY --from=qemu /usr/bin/qemu-*-static /usr/bin/
-
 # hadolint ignore=DL3008,DL3015
 RUN \
   apt-get update && \

docker/oss/Dockerfile

@@ -1,6 +1,3 @@
-# Workaround for issue: https://github.com/docker/setup-qemu-action/issues/198
-FROM --platform=$BUILDPLATFORM multiarch/qemu-user-static AS qemu
-
 # layer for download and verifying
 FROM ubuntu:jammy as graylog-downloader
 
@@ -26,9 +23,6 @@ ARG DOWNLOAD_URL=none
 
 WORKDIR /tmp
 
-# Workaround for issue: https://github.com/docker/setup-qemu-action/issues/198
-COPY --from=qemu /usr/bin/qemu-*-static /usr/bin/
-
 # hadolint ignore=DL3008,DL3015
 RUN \
   apt-get update && \