Clean up autotools config.

Remove some of @stagrlee's hard work since jq's testsuite is
less silly than when he wrote the autotools config.

configure.ac

@@ -16,33 +16,10 @@ AM_PROG_CC_C_O
 dnl couldn't use AM_PROG_LEX as it doesn't support header files like the
 dnl AC_PROG_YACC macros...
 
-dnl   CFLAGS is concidered a packagers variable, not a developer variable
-dnl   in Auto-tools.  For developer ease of use, CFLAGS are set how the
-dnl   developers like them by default but the packager can disable if so
-dnl   desired.  This is useful if something other than gcc is needed or
-dnl   for distros that need to heavily tweek the compiler (gentoo, ARM cpu
-dnl   linux's, etc)
-AC_ARG_ENABLE(
-  [devel],
-  [AC_HELP_STRING(
-    [--enable-devel],
-    [Build the tests and enable the same CFLAGS used by jq developers @<:@default=no@:>@])],
-  [],
-  [enable_devel=no]
-)
-AC_MSG_RESULT($enable_devel)
-AM_CONDITIONAL([DEVELOPMENT_ENABLED], [test x$enable_devel = xyes])
-
 dnl
 dnl these program checks should probably be deleted
 dnl
 
-dnl Check for sed
-AC_CHECK_PROGS(regex_cmd, sed)
-if test x$regex_cmd = "x" ; then
-    AC_MSG_NOTICE([sed is required to patch jq.])
-fi
-
 dnl Check for flex
 AC_CHECK_PROGS(flex_cmd, flex)
 if test x$flex_cmd = "x" ; then
@@ -55,12 +32,6 @@ if test x$bison_cmd = "x" ; then
     AC_MSG_NOTICE([bison is required to patch jq.])
 fi
 
-dnl Check for python
-AC_CHECK_PROGS(python_cmd, python)
-if test x$python_cmd = "x" ; then
-    AC_MSG_NOTICE([python is required to patch jq.])
-fi
-
 dnl Check for valgrind
 AC_CHECK_PROGS(valgrind_cmd, valgrind)
 if test x$valgrind_cmd = "x" ; then
@@ -72,3 +43,6 @@ AC_CONFIG_HEADERS(config.h)
 AM_INIT_AUTOMAKE([-Wall dist-bzip2 dist-zip])
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT
+
+
+dnl FIXME should disable colour output on windows somehow