Simplify comment

src/main/java/com/google/devtools/build/lib/bazel/bzlmod/ModuleExtensionUsage.java

@@ -145,8 +145,7 @@ public record RepoOverride(String overridingRepoName, boolean mustExist, Locatio
    * Contains information about overrides that apply to repos generated by this extension. Keyed by
    * the extension-local repo name.
    *
-   * <p>This is only non-empty for root module usages and repos that override other repos are not
-   * themselves overridden, so overrides do need to be applied recursively.
+   * <p>This is only non-empty for root module usages.
    */
   public abstract ImmutableMap<String, RepoOverride> getRepoOverrides();