Revert "We need at least automake 1.11.4 to provide the necessary config.guess and config.sub for aarch64"

We apply the patch later if distros use this version more frequent.

This reverts commit 1e1ab45caed353b182e180c0338e395a7e60754e.
Revert "Require autoconf 2.69 to support aarch64"

This reverts commit 9b9dc80227957772e177bb7db4609a707c33473a.
We apply the patch later if distros use this version more frequent.