Remove redundant hasText check as query always has text

See gh-19290

Author: lyyprean

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/jdbc/DataSourceHealthIndicator.java

@@ -107,12 +107,10 @@ private void doDataSourceHealthCheck(Health.Builder builder) throws Exception {
 		String product = getProduct();
 		builder.up().withDetail("database", product);
 		String validationQuery = getValidationQuery(product);
-		if (StringUtils.hasText(validationQuery)) {
-			// Avoid calling getObject as it breaks MySQL on Java 7
-			List<Object> results = this.jdbcTemplate.query(validationQuery, new SingleColumnRowMapper());
-			Object result = DataAccessUtils.requiredSingleResult(results);
-			builder.withDetail("hello", result);
-		}
+		// Avoid calling getObject as it breaks MySQL on Java 7
+		List<Object> results = this.jdbcTemplate.query(validationQuery, new SingleColumnRowMapper());
+		Object result = DataAccessUtils.requiredSingleResult(results);
+		builder.withDetail("hello", result);
 	}
 
 	private String getProduct() {