Revert "OvmfPkg: Add CpuPageTableLib required by MpInitLib."

Revert "OvmfPkg: Add CpuPageTableLib required by MpInitLib."

This reverts commit 4a8642422460635462d315defe4ca84bf6d33351 as the
commit 73ccde8 introduced CpuPageTableLib dependency which resolved
for OvmfPkg is to be reverted.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4234
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Yuanhao Xie <yuanhao.xie@intel.com>