Remove init script when gaining a new DB connection (#7748)

Author: kezhenxu94

dolphinscheduler-server/src/main/resources/config/install_config.conf

@@ -85,7 +85,7 @@ DATABASE_TYPE=${DATABASE_TYPE:-"h2"}
 
 # Spring datasource url, following <HOST>:<PORT>/<database>?<parameter> format, If you using mysql, you could use jdbc
 # string jdbc:mysql://127.0.0.1:3306/dolphinscheduler?useUnicode=true&characterEncoding=UTF-8 as example
-SPRING_DATASOURCE_URL=${SPRING_DATASOURCE_URL:-"jdbc:h2:mem:dolphinscheduler;MODE=MySQL;DB_CLOSE_DELAY=-1;DATABASE_TO_LOWER=true;INIT=runscript from 'classpath:sql/dolphinscheduler_h2.sql'"}
+SPRING_DATASOURCE_URL=${SPRING_DATASOURCE_URL:-"jdbc:h2:mem:dolphinscheduler;MODE=MySQL;DB_CLOSE_DELAY=-1;DATABASE_TO_LOWER=true"}
 
 # Spring datasource username
 SPRING_DATASOURCE_USERNAME=${SPRING_DATASOURCE_USERNAME:-"sa"}