Obsolete Autotools m4s used

[sanjayankur31]

This was picked up during the Fedora package review.

AutoTools: Obsoleted m4s found
------------------------------
  AC_PROG_LIBTOOL found in: libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-mpich-py2/configure.ac:189,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-py2/configure.ac:189, libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-mpich/configure.ac:189,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-openmpi/configure.ac:189,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-openmpi-py2/configure.ac:189,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/configure.ac:189
  AM_CONFIG_HEADER found in: libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-mpich-py2/configure.ac:4,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-py2/configure.ac:4, libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-mpich/configure.ac:4, libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-openmpi/configure.ac:4,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23-openmpi-py2/configure.ac:4,
  libneurosim-57b76e222dd3196fa3c97ddfa2f8132627814c23/libneurosim-
  57b76e222dd3196fa3c97ddfa2f8132627814c23/configure.ac:4

I've been looking up the docs to see what the newer macros are, but I haven't found anything definite yet. I'll keep looking.