libcec: remove LIBCEC_AUTORECONF variable

libcec is a cmake based package. LIBCEC_AUTORECONF is meaningless in
this context.

Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libcec/libcec.mk

@@ -9,8 +9,6 @@ LIBCEC_SITE = $(call github,Pulse-Eight,libcec,libcec-$(LIBCEC_VERSION))
 LIBCEC_LICENSE = GPLv2+
 LIBCEC_LICENSE_FILES = COPYING
 
-# Autoreconf required due to being a dev tarball and not a release tarball.
-LIBCEC_AUTORECONF = YES
 LIBCEC_INSTALL_STAGING = YES
 LIBCEC_DEPENDENCIES = host-pkgconf libplatform