remove workarounds for #1010957

tests/check-for-bit-by-bit-identical-format-output

@@ -8,7 +8,6 @@ fi
 adduser --gecos user --disabled-password user
 sysctl -w kernel.unprivileged_userns_clone=1
 export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-mount -o size=4G -t tmpfs tmpfs /tmp # workaround for #1010957
 {{ CMD }} --mode=root --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot-root.{{ FORMAT }} {{ MIRROR }}
 if [ "{{ FORMAT }}" = tar ]; then
 	printf 'ustar ' | cmp --bytes=6 --ignore-initial=257:0 /tmp/debian-chroot-root.tar -

tests/compare-output-with-pre-seeded-var-cache-apt-archives

@@ -14,7 +14,6 @@ include="--include=doc-debian"
 if [ "{{ VARIANT }}" = "custom" ]; then
 	include="$include,base-files,base-passwd,coreutils,dash,diffutils,dpkg,libc-bin,sed"
 fi
-mount -o size=4G -t tmpfs tmpfs /tmp # workaround for #1010957
 {{ CMD }} $include --mode={{ MODE }} --variant={{ VARIANT }} \
 	--setup-hook='mkdir -p "$1"/var/cache/apt/archives/partial' \
 	--setup-hook='touch "$1"/var/cache/apt/archives/lock' \