1. Remove many redundant macros.
2. Reorder several macros to more appropriate locations.
3. Several macros take lists of items to process, not just individual items. Combined duplicated macros' parameters into lists.
4. Some macros had unnecessary parameters.
5. Added some AX_REQUIRE_DEFINED() checks for the macros used.
6. Add cyassl/options.h to the AC_CONFIG_FILES list. It will be recreated from the template when running config.status the same as wolfssl/options.h
7. Remove the dist-dir rule from Makefile.am. This is prefering the process rather than automating that one step. Make dist will not run config.status.
* AC_PROG_CC must be before any macros that will try to compile for tests.
* AC_CHECK_SIZEOF takes a single type, no size values.
* Only one of the AC_CANONICAL_X macros are expanded. Removed AC_CANONICAL_BUILD since it is never actually used.
* Removed the AC_PROG_CXX and anything C++ related.
* Removed LT_LANG([C]) as it is the default and the C doesn't do anything.
1. Since AX_HARDEN is called always, moved the few items
set in configure for gcc-hardening to AX_HARDEN.
2. Dropped the macros that AX_DEBUG was setting that we
haven't been using and aren't using now.
