package/libcurl: Remove autoreconf

When libcurl-0001-build-link-curl-to-NSS-libraries-when-NSS-support.patch
was removed the corresponding autoreconf was left behind:
http://git.buildroot.net/buildroot/commit/?id=9185b64ed5599622cb89ca4ee6ee29440b02ec8a

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libcurl/libcurl.mk

@@ -14,8 +14,6 @@ LIBCURL_DEPENDENCIES = host-pkgconf \
 LIBCURL_LICENSE = ICS
 LIBCURL_LICENSE_FILES = COPYING
 LIBCURL_INSTALL_STAGING = YES
-# For libcurl-0001-build-link-curl-to-NSS-libraries-when-NSS-support.patch
-LIBCURL_AUTORECONF = YES
 
 # We disable NTLM support because it uses fork(), which doesn't work
 # on non-MMU platforms. Moreover, this authentication method is