Unfortunately not. Way to "shrink" virtual disks are either using VMware Converter, or manually migrating/copying the data to a new (smaller) virtual disk.
In case the virtual disk has been thin provisioned, it is possible - depending on the guest OS - to reduce the partition size. This way no data is written to the unallocated guest disk space, and the .vmdk file can only grow up to the partitioned size.
André