config/default: remove cflag -march=core-avx2 for icx on levante

config/default

@@ -391,7 +391,7 @@ case "${HOSTNAME}" in
                     LDFLAGS="$LDFLAGS" \
                     F77=ifx FFLAGS="-g -O2" \
 	            CXX=icpx CXXFLAGS="-g -Wall -O2 -march=core-avx2 -I${FFTW3PATH}/include" \
-	            CC=icx   CFLAGS="-g -Wall -O2 -march=core-avx2"
+	            CC=icx   CFLAGS="-g -Wall -O2"
         elif  test "$COMP" = pgi ; then
           ${CONFPATH}configure --without-fortran \
                     $CDOLIBS \