remove typo

Author: gfunc

jdbc-v2/src/main/java/com/clickhouse/jdbc/StatementImpl.java

@@ -371,7 +371,7 @@ public boolean execute(String sql, QuerySettings settings) throws SQLException {
             executeUpdate(sql, settings);
             //USE Database
             List<String> tokens = JdbcUtils.tokenizeSQL(sql);
-            this.schema = tokens.get(1).replace("\"", "");;
+            this.schema = tokens.get(1).replace("\"", "");
             LOG.info("Changed statement schema " + schema);
             return false;
         } else {