meson: drop capture on validate-configs

When `capture: true` is set, any failure information is placed into a
log file which is not visible in CI.  Dropping this causes the meson
build to show the full failures.

This is important when a config has schema validation failures to
be able to clearly see what the validation issues are.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I2ea897ae4f514fe0c24dab92f1257d5b31d8dc65
diff --git a/meson.build b/meson.build
index c8703c1..7ba474c 100644
--- a/meson.build
+++ b/meson.build
@@ -85,7 +85,6 @@
         command: [validate_script, '-v', '-k'],
         depend_files: files(filepaths),
         build_by_default: true,
-        capture: true,
         output: 'validate_configs.log',
     )
 endif