vboot/secdata: remove TPMClearAndReenable function mock

This function is only used internally in rollback_index.c
and thus does not need a mock.

(It does need to be listed in rollback_index.h since it
must be accessible by tests.)

BUG=b:124141368, chromium:972956
TEST=make clean && make runtests
BRANCH=none

Change-Id: Ib7ce907da82608de7e5c6c2be11c57bf353ca0b3
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1780088
Commit-Queue: Joel Kitching <kitching@chromium.org>
Tested-by: Joel Kitching <kitching@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

firmware/lib/mocked_rollback_index.c

@@ -10,17 +10,11 @@
 #include "rollback_index.h"
 #include "tss_constants.h"
 
-
 vb2_error_t SetVirtualDevMode(int val)
 {
 	return VB2_SUCCESS;
 }
 
-uint32_t TPMClearAndReenable(void)
-{
-	return TPM_SUCCESS;
-}
-
 uint32_t RollbackKernelRead(uint32_t *version)
 {
 	*version = 0;