Disable Multi-Node Sync System Attributes

Sync System Attributes code added for HBRT multi-node support seems to cause
HBRT Adjunct to hang.  Disable this support until cause is found and corrected.

Change-Id: I709ffa24715e27277145e7b70c6475a66a29f7c7
RTC: 190816
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/56773
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>

src/usr/targeting/common/target.C

@@ -154,9 +154,9 @@ bool Target::_trySetAttr(
     // Get the node ID associated with the input target
     NODE_ID l_nodeId = NODE0;
     l_attrRP->getNodeId(this, l_nodeId);
-    bool isSysTarget = ((this->getAttr<ATTR_CLASS>() == CLASS_SYS) &&
+    bool isSysTarget = /* ((this->getAttr<ATTR_CLASS>() == CLASS_SYS) &&
                         (this->getAttr<ATTR_TYPE>() == TYPE_SYS))
-                     ? true : false;
+                     ? true : @TODO RTC:190816 */ false;
 #endif
 
     // Figure out if effort should be expended figuring out the target's type/