Remove last vestiges of Carbon-related tools from the makefile

Don't detect DeRez, Rez and SetFile in configure, they are not used any
longer as .r resource files are not used under modern macOS.

configure.in

@@ -7977,31 +7977,6 @@ if test "$wxUSE_MSW" = 1 ; then
     RESCOMP="$WINDRES"
 fi
 
-if test "$wxUSE_MAC" = 1; then
-    dnl base name of the resource file for wxMac must be the same
-    dnl as library installation base name (-install_name)
-    WX_RESOURCES_MACOSX_ASCII="libwx_${TOOLCHAIN_NAME}.${wx_release_number}.r"
-    WX_RESOURCES_MACOSX_DATA="libwx_${TOOLCHAIN_NAME}.${wx_release_number}.rsrc"
-
-    dnl add the resources target for wxMac
-    LIBWXMACRES="\$(wx_top_builddir)/lib/${WX_RESOURCES_MACOSX_ASCII}"
-
-    AC_CHECK_PROG(DEREZ, DeRez, DeRez, /Developer/Tools/DeRez)
-
-    MACSETFILE="\$(SETFILE)"
-
-    dnl resources are bundled both with shared library and applications
-    dnl since the carb resource *must* be included in the application
-    POSTLINK_COMMAND="cat /dev/null | \$(REZ) -d __DARWIN__ -t APPL ${LIBWXMACRES}"
-    RESCOMP="cat /dev/null \| $REZ"
-    WXCONFIG_RESFLAGS="-d __DARWIN__ -t APPL \$libdir/$WX_RESOURCES_MACOSX_ASCII"
-
-else
-    dnl default value is to (silently) do nothing in the makefile
-    MACSETFILE="@true"
-    POSTLINK_COMMAND="@true"
-fi
-
 fi
 dnl wxUSE_GUI = 1
 
@@ -8155,15 +8130,6 @@ AC_SUBST(WX_VERSION_TAG)
 dnl additional resurces settings
 AC_SUBST(RESCOMP)
 AC_SUBST(WINDRES)
-AC_SUBST(REZ)
-AC_SUBST(WX_RESOURCES_MACOSX_ASCII)
-AC_SUBST(WX_RESOURCES_MACOSX_DATA)
-
-dnl additional for Mac OS X
-AC_SUBST(DEREZ)
-AC_SUBST(LIBWXMACRES)
-AC_SUBST(POSTLINK_COMMAND)
-AC_SUBST(MACSETFILE)
 
 dnl other tools
 AC_SUBST(GCC)