efi_loader: remove unused TCG algo definitions

commit 97707f12 ("tpm: Support boot measurements") moved some of the
EFI TCG code to the TPM subsystem. Those definitions are now in tpm-v2.h.
Let's remove the stale entries

Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>