OvmfPkg: Remove unused print service driver (PrintDxe)

OvmfPkg: Remove unused print service driver (PrintDxe)

PrintDxe produces gEfiPrint2ProtocolGuid and gEfiPrint2SProtocolGuid,
and those are consumed by the following PrintLib instance:

MdeModulePkg/Library/DxePrintLibPrint2Protocol/DxePrintLibPrint2Protocol.inf

However, none of the OVMF DSC files contain such a PrintLib class
resolution, so none of the OVMF platforms need PrintDxe.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3744
Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>