chore: Update comments

Author: lqiu96

gax-java/gax/src/main/java/com/google/api/gax/rpc/EndpointContext.java

@@ -214,9 +214,8 @@ private String determineUniverseDomain() {
       if (universeDomain() != null && universeDomain().isEmpty()) {
         throw new IllegalArgumentException("The universe domain value cannot be empty.");
       }
-      // Override with configured universe domain if provided. If the universe domain is configured
-      // by the user, the universe domain will either be the settings or from the env var. The
-      // value from ClientSettings has priority.
+      // If the universe domain is configured by the user, the universe domain will either be
+      // from the settings or from the env var. The value from ClientSettings has priority.
       return universeDomain() != null ? universeDomain() : Credentials.GOOGLE_DEFAULT_UNIVERSE;
     }