container-queries: remove similarly-named but irrelevant compat keys (#1290)

Discovered thanks to #1231

Author: ddbeck

features/container-queries.yml

@@ -10,9 +10,6 @@ compat_features:
   # - api.CSSContainerRule.containerName
   # - api.CSSContainerRule.containerQuery
   - css.at-rules.container
-  - css.properties.contain
-  - css.properties.contain.inline-size
-  - css.properties.contain.style
   - css.properties.container
   - css.properties.container-name
   - css.properties.container-name.none