sim: drop redundant SIM_AC_OPTION_WARNINGS

The common code already calls this, so no need to do so in arch dirs.
We leave the calls that disable -Werror.  This will help unify the
configure scripts.

sim/avr/ChangeLog

@@ -1,3 +1,8 @@
+2021-06-14  Mike Frysinger  <vapier@gentoo.org>
+
+	* configure.ac: Delete call to SIM_AC_OPTION_WARNINGS.
+	* configure: Regenerate.
+
 2021-06-12  Mike Frysinger  <vapier@gentoo.org>
 
 	* configure.ac: Delete call to SIM_AC_OPTION_ALIGNMENT.

sim/avr/configure

@@ -11193,6 +11193,7 @@ fi
 fi
 
 
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -11293,7 +11294,6 @@ $as_echo "${WARN_CFLAGS} ${WERROR_CFLAGS}" >&6; }
 fi
 
 
-
 hardware="cfi core pal glue "
 sim_hw_cflags="-DWITH_HW=1"
 sim_hw="$hardware"

sim/avr/configure.ac

@@ -5,6 +5,5 @@ AC_CONFIG_MACRO_DIRS([../m4 ../.. ../../config])
 SIM_AC_COMMON
 
 SIM_AC_OPTION_ENDIAN(LITTLE)
-SIM_AC_OPTION_WARNINGS
 
 SIM_AC_OUTPUT