Remove simics enforcement of TPM Required

On early systems we wanted to always enforce TPM Required in
Simics before we could set the default in production firmware.
The time has long passed for this to be relevant.

Change-Id: I597fa85dd86cb4e6f67519311b6a8c60a87ea887
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/129877
Tested-by: Jenkins OP Build CI <[email protected]>
Tested-by: Jenkins Server <[email protected]>
Tested-by: Jenkins Combined Simics CI <[email protected]>
Tested-by: FSP CI Jenkins <[email protected]>
Tested-by: Jenkins OP HW <[email protected]>
Tested-by: Hostboot CI <[email protected]>
Reviewed-by: Michael Baiocchi <[email protected]>
Reviewed-by: Ilya Smirnov <[email protected]>
Reviewed-by: Nick Bofferding <[email protected]>

Author: dcrowell77

src/usr/secureboot/trusted/trustedboot.C

@@ -2612,18 +2612,9 @@ bool isTpmRequired()
     bool retVal = false;
     do
     {
-        // TPM always required in simics
-        if(Util::isSimicsRunning())
-        {
-            retVal = true;
-        }
-        else
-        {
-            // On HW, use ATTR_TPM_REQUIRED
-            TARGETING::Target* pTopLevel =
-                TARGETING::UTIL::assertGetToplevelTarget();
-            retVal = pTopLevel->getAttr<TARGETING::ATTR_TPM_REQUIRED>();
-        }
+        TARGETING::Target* pTopLevel =
+          TARGETING::UTIL::assertGetToplevelTarget();
+        retVal = pTopLevel->getAttr<TARGETING::ATTR_TPM_REQUIRED>();
 
         TRACUCOMP( g_trac_trustedboot, "isTpmRequired: Using ATTR_TPM_REQUIRED:"
                    " retVal=%d",