Remove unused brackets in MySqlParser

convertedDataType
:
(
typeName=(BINARY| NCHAR) lengthOneDimension?
| typeName=CHAR lengthOneDimension? ((CHARACTER SET | CHARSET | CHAR SET) charsetName)?
| typeName=(DATE | DATETIME | TIME | JSON | INT | INTEGER)
| typeName=DECIMAL lengthTwoOptionalDimension?
| (SIGNED | UNSIGNED) INTEGER?
) (ARRAY)?
;