ESAPI: Remove unused internal function
ESAPI: Remove unused internal function

Remove the unused internal function
iesys_cryptogcry_pk_decrypto from the esys_ctrypto
module, since we decided to only include actually
used functions in our _internal_ crypto layer.

Signed-off-by: Andreas Fuchs <622ac2c25087201462d23b927a044354eba8dded@sit.fraunhofer.de>

01org/TPM2.0-TSS,01org/tpm2-tss,01org/tpm2-tss,01org/TPM2.0-TSS,01org/tpm2-tss,tpm2-software/tpm2-tss,tpm2-software/tpm2-tss,01org/TPM2.0-TSS,01org/TPM2.0-TSS,tpm2-software/tpm2-tss