luci-base: fix ubus getFeatures() crash

OpenWrt versions that provide odhcpd versions reporting a compile time
features line in their help output trigger a crash in the getFeatures()
procedure (attempt to set property on boolean value) - fix this issue
by not predeclaring the odhcpd flag as `false`.

Fixes: #8489
Fixes: 0529dca7a2 ("luci-base: fix feature detection patterns")
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

modules/luci-base/root/usr/share/rpcd/ucode/luci

@@ -291,7 +291,6 @@ const methods = {
 				fd.close();
 			}
 
-			result.odhcpd = false;
 			fd = popen('odhcpd -h 2>/dev/null');
 
 			if (fd) {