Revert "mhook: backport version 2.4 changes"

This reverts commit 4524c7ddbbd06ae471dbb3221e9a40d067ad2840.

Fixes #4179
mhook: backport REX-prefixed EIP-based jump fix

This reverts commit 1b826e7a56671c3b8ed0ee827bc2186700a3a952.