Remove unnecessary call to ex.printStackTrace

Closes gh-42681

Author: snicoll

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jdbc/DataSourceProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -199,7 +199,6 @@ private boolean driverClassIsLoadable() {
 			throw ex;
 		}
 		catch (Throwable ex) {
-			ex.printStackTrace();
 			return false;
 		}
 	}