Remove checking for LUA during configure
Remove checking for LUA during configure

The pkgconfig doesn't work on macosx by default (no pkggonfig)

Change-Id: I74fba142a1d6f932668d6ab4fa44201ea33ce3ae

monicasarbu/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,monicasarbu/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,boundary/sigar,monicasarbu/sigar,monicasarbu/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,boundary/sigar,boundary/sigar,boundary/sigar,boundary/sigar,boundary/sigar,monicasarbu/sigar,boundary/sigar