package/libpsl: remove docs config option

This option is only available in master and not any release.

Fixes:
output/build/libpsl-0.21.1/meson.build:1:0: ERROR: Unknown options: "docs"

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Acked-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/libpsl/libpsl.mk

@@ -10,7 +10,6 @@ LIBPSL_LICENSE = MIT, BSD-3-Clause
 LIBPSL_LICENSE_FILES = COPYING src/LICENSE.chromium
 LIBPSL_DEPENDENCIES = host-pkgconf
 LIBPSL_INSTALL_STAGING = YES
-LIBPSL_CONF_OPTS = -Ddocs=false
 
 # The order of checks is the same as done by libpsl when configured.
 ifeq ($(BR2_PACKAGE_LIBIDN2)$(BR2_PACKAGE_LIBUNISTRING),yy)