docker/coreboot-sdk/Dockerfile: Remove old workaround

Remove old workaround for automake and aclocal.

Change-Id: Ifc00a479fd08d9ee4d97df6da8762bae2d097827
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76740
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>

util/docker/coreboot-sdk/Dockerfile

@@ -80,9 +80,7 @@ RUN \
 		wget \
 		xz-utils \
 		zlib1g-dev \
-	&& apt-get clean \
-	&& ln -s /usr/bin/automake /usr/bin/automake-1.15 \
-	&& ln -s /usr/bin/aclocal /usr/bin/aclocal-1.15
+	&& apt-get clean
 
 RUN \
 	cd /tmp && \