package/axel: bump version to 2.17.14

Remove ac_cv_prog_cc_c99; axel has been updated to autoconf 2.72, whose C99
test is compatible with BR2_USE_WCHAR=n.

Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

package/axel/axel.hash

@@ -1,2 +1,2 @@
-sha256  6af9c0238ca4fb850baa17878de0361868e3ff6d9302298d83c6d26931c28723  axel-2.17.13.tar.xz
+sha256  938ee7c8c478bf6fcc82359bbf9576f298033e8b13908e53e3ea9c45c1443693  axel-2.17.14.tar.xz
 sha256  ab15fd526bd8dd18a9e77ebc139656bf4d33e97fc7238cd11bf60e2b9b8666c6  COPYING

package/axel/axel.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-AXEL_VERSION = 2.17.13
+AXEL_VERSION = 2.17.14
 AXEL_SITE = https://github.com/axel-download-accelerator/axel/releases/download/v$(AXEL_VERSION)
 AXEL_SOURCE = axel-$(AXEL_VERSION).tar.xz
 AXEL_LICENSE = GPL-2.0+
@@ -12,10 +12,7 @@ AXEL_LICENSE_FILES = COPYING
 AXEL_CPE_ID_VALID = YES
 AXEL_DEPENDENCIES = host-pkgconf $(TARGET_NLS_DEPENDENCIES)
 
-# ac_cv_prog_cc_c99 is required for BR2_USE_WCHAR=n because the C99 test
-# provided by autoconf relies on wchar_t.
 AXEL_CONF_OPTS = \
-	ac_cv_prog_cc_c99=-std=c99 \
 	CFLAGS="$(TARGET_CFLAGS)"
 
 ifeq ($(BR2_PACKAGE_OPENSSL),y)