ima_emulator_adapater: Remove unnecessary global statement
ima_emulator_adapater: Remove unnecessary global statement

Remove an unnecessary global statement for start_hash since this
variable is accessed read-only. After replaying the log we end up
with the same result in PCR 10 as before this patch.

Signed-off-by: Stefan Berger <5c96973112e540fb909b13997fcd087e5bfbee96@linux.ibm.com>

mit-ll/python-keylime,mit-ll/python-keylime,mit-ll/python-keylime,mit-ll/python-keylime