8200364: Remove unnecessary boxing via primitive wrapper valueOf(String) methods

Reviewed-by: dfuchs, alanb

src/java.logging/share/classes/java/util/logging/Logger.java

@@ -640,7 +640,7 @@ public class Logger {
                     return System.getProperty(key);
                 }
             });
-            return Boolean.valueOf(s);
+            return Boolean.parseBoolean(s);
         }
     }