maven plugin: log global settings, minor improvements (#16961)

modules/openapi-generator-core/src/main/java/org/openapitools/codegen/config/GeneratorSettings.java

@@ -1198,7 +1198,6 @@ public final class GeneratorSettings implements Serializable {
          */
         public GeneratorSettings build() {
             GeneratorSettings instance = new GeneratorSettings(this);
-            //noinspection PlaceholderCountMatchesArgumentCount
             LOGGER.debug("GeneratorSettings#build: {}", instance);
             return instance;
         }