Merge pull request #4067 from annando/removed-unused

Deprecated file removed

util/convert_innodb.sql

@@ -1,6 +0,0 @@
-#  script to convert tables from MyISAM to InnoDB
-#  change the %PLACEHOLDER% to the actual name of your Friendica DB
- 
-SELECT CONCAT('ALTER TABLE ',table_schema,'.',table_name,' engine=InnoDB;') 
-FROM information_schema.tables 
-WHERE engine = 'MyISAM' AND  `table_schema` = '%PLACEHOLDER%';