package/libnss: remove useless NSS_ENABLE_ECC variable

NSS_ENABLE_ECC is not supported anymore, then remove it from our
libnss.mk file.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/libnss/libnss.mk

@@ -50,7 +50,6 @@ LIBNSS_BUILD_VARS = \
 	NS_USE_GCC=1 \
 	NSS_DISABLE_GTESTS=1 \
 	NSS_USE_SYSTEM_SQLITE=1 \
-	NSS_ENABLE_ECC=1 \
 	NATIVE_CC="$(HOSTCC)" \
 	OS_ARCH="Linux" \
 	OS_RELEASE="2.6" \
@@ -121,7 +120,6 @@ HOST_LIBNSS_BUILD_VARS = \
 	NSS_USE_SYSTEM_SQLITE=1 \
 	SQLITE_INCLUDE_DIR=$(HOST_DIR)/include \
 	ZLIB_INCLUDE_DIR=$(HOST_DIR)/include \
-	NSS_ENABLE_ECC=1 \
 	NSS_ENABLE_WERROR=0
 
 HOST_LIBNSS_DEPENDENCIES = host-libnspr host-sqlite host-zlib