Revert "testplan/kms: Make documentation is mandatory for all kms subtests"

This change broke igt build when building without chamelium

This reverts commit 00bc4cf3.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Acked-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>

docs/testplan/meson.build

@@ -31,13 +31,13 @@ xe_test_dict = {
 if build_xe
 	test_dict = {
 		'i915_tests': { 'input': i915_test_config, 'extra_args': check_testlist },
-		'kms_tests': { 'input': kms_test_config, 'extra_args': check_testlist },
+		'kms_tests': { 'input': kms_test_config, 'extra_args': [] },
 		'xe_tests': { 'input': xe_test_config, 'extra_args': check_testlist }
 	    }
 else
 	test_dict = {
 	      'i915_tests': { 'input': i915_test_config, 'extra_args': check_testlist },
-	      'kms_tests': { 'input': kms_test_config, 'extra_args': check_testlist }
+	      'kms_tests': { 'input': kms_test_config, 'extra_args': [] }
 	    }
 endif