default-distrovars: Drop DISTRO_FEATURES_LIBC

After eglibc was merged into glibc, Kconfig support was also dropped so
these libc features therefore are not effective anymore and can be
removed

(From OE-Core rev: c62b1cc06613a4cdddf53290e6203559f43fc62d)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/image.bbclass

@@ -176,11 +176,6 @@ IMAGE_LINGUAS ?= "de-de fr-fr en-gb"
 
 LINGUAS_INSTALL ?= "${@" ".join(map(lambda s: "locale-base-%s" % s, d.getVar('IMAGE_LINGUAS').split()))}"
 
-python () {
-    if not bb.utils.contains('DISTRO_FEATURES', 'libc-charsets libc-locale-code libc-locales', True, False, d):
-        d.setVar('IMAGE_LINGUAS', '')
-}
-
 # Prefer image, but use the fallback files for lookups if the image ones
 # aren't yet available.
 PSEUDO_PASSWD = "${IMAGE_ROOTFS}:${STAGING_DIR_NATIVE}"

meta/classes/libc-package.bbclass

@@ -37,14 +37,11 @@ python __anonymous () {
                 d.setVar("DEPENDS", depends)
                 d.setVar("GLIBC_INTERNAL_USE_BINARY_LOCALE", "compile")
                 break
-
-    # try to fix disable charsets/locales/locale-code compile fail
-    if bb.utils.contains('DISTRO_FEATURES', 'libc-charsets libc-locales libc-locale-code', True, False, d):
-        d.setVar('PACKAGE_NO_GCONV', '0')
-    else:
-        d.setVar('PACKAGE_NO_GCONV', '1')
 }
 
+# try to fix disable charsets/locales/locale-code compile fail
+PACKAGE_NO_GCONV ?= "0"
+
 OVERRIDES_append = ":${TARGET_ARCH}-${TARGET_OS}"
 
 locale_base_postinst_ontarget() {