build: drop autotools

With previously added support for building with meson/ninja autotools
support is no longer required.

Change-Id: I80654ada9d099a57447ded73da71f39293cd2f0a
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/.gitignore b/.gitignore
index 8a7f3f1..8c94d06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,32 +1,2 @@
-*.o
-*.lo
-*.la
+build/
 *.sw*
-Makefile
-Makefile.in
-configure
-.deps
-.libs
-aclocal.m4
-ar-lib
-arm-openbmc-linux-gnueabi-libtool
-autom4te.cache/
-compile
-config.guess
-config.h
-config.h.in
-config.h.in~
-config.log
-config.status
-config.sub
-depcomp
-install-sh
-i586-openbmc-linux-libtool
-libtool
-ltmain.sh
-missing
-stamp-h1
-pseq-monitor
-psu-monitor
-ucd90160_defs.cpp
-test-driver