vCenter to a VM – now with 2 VM disk

I was running our vCenter Server 4.1 on a Dell 2850..

The server was needed on another project that went active on short notice.

I converted the vCenter Server 4.1 Dell 2850 to a VM and increased the C: drive

The Dell 2850 vCenter was removed.

The vCenter on the VM is running as expected without any issues.

However, I now need to shrink the disk. 

The VM settings for shows two Hard Disk:

Hard Disk 1 is Thick provisioned and is 50 GB.

Hard Disk 2 is Thick provisioned and is 136 GB.

Hard Disk 1 is the C drive and has 19 GB free out of the total 50 GB.

Hard Disk 2 is the D drive and has 131 GB free out of the total 136 GB.

Drive D is where the Update Manager stores the metadata

Question is.

Should I attempt to resize drive d: (down size)

or

Remove it and have Update Manager use the C: drive?

thanks