Revert "tdf#123020: migration to Firebird fix tablename for indexes"

This patch is wrong (see comments on gerrit) 

This reverts commit b35a64be.

Change-Id: Ib093e83cf68460671e9a14b3f1dc2a8d884de0b9
Reviewed-on: https://gerrit.libreoffice.org/67300Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Julien Nabet <serval2412@yahoo.fr>

dbaccess/source/filter/hsqldb/parseschema.cxx

@@ -74,9 +74,8 @@ public:
 
     OUString getTableName() const
     {
-        // SET TABLE "<table name which can contain several words>" INDEX'...
-        // 9 corresponds to nb chars in "SET TABLE"
-        return m_sql.copy(m_sql.indexOf("\""), m_sql.lastIndexOf("\"") - 9);
+        // SET TABLE <tableName>
+        return string::split(m_sql, u' ')[2];
     }
 };