Revert "Add GHASH for PowerISA 2.07."
Revert "Add GHASH for PowerISA 2.07."

This reverts commit 927f2e5dea1da17bcc2c3d2baf7258318b57515c.

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl