automation: Remove installation of packages from test scripts

Now, when these packages are already installed in the respective
containers, we can remove them from the test scripts.

Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
master commit: 72cfe1c3ad
master date: 2022-12-09 14:55:33 -0800

automation/scripts/qemu-smoke-x86-64.sh

@@ -5,11 +5,6 @@ set -ex
 # variant should be either pv or pvh
 variant=$1
 
-# Install QEMU
-export DEBIAN_FRONTENT=noninteractive
-apt-get -qy update
-apt-get -qy install qemu-system-x86
-
 # Clone and build XTF
 git clone https://xenbits.xen.org/git-http/xtf.git
 cd xtf && make -j$(nproc) && cd -