Desupported database drivers

Database drivers for old database client versions are removed according to the vendor de-support plans.

Database drivers desupported in version 3.00:

SAP Sybase ASE 15.x (dbmase_15): New SAP Sybase ASE 16.x version is now supported.
Oracle Database 10.1 and 10.2 (dbmora_10)

Note that no more driver is available for Linux PowerPC 32/64 platforms, because Oracle has desupported this platform.
IBM DB2 UDB 9.x (dbmdb2_9)