Remove ATTR_PROC_CHIP_MEM_TO_USE

Cleaning up deprecated code

Change-Id: I83d38acc12588ec2c1954920cfb083b0d0190aee
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/63043
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/63159

src/import/chips/p9/procedures/xml/attribute_info/pervasive_attributes.xml

@@ -767,18 +767,6 @@
   <platInit/>
 </attribute>
 
-<attribute>
-  <id>ATTR_PROC_CHIP_MEM_TO_USE</id>
-  <targetType>TARGET_TYPE_SYSTEM</targetType>
-  <description>This attribute denotes where our master proc's memory is
-    located. In the case that the master-proc does not have usable memory,
-    we are going to use another proc's memory to boot. The attribute will be
-    set to the chip and group ID of which proc we want to use.</description>
-  <valueType>uint8</valueType>
-  <persistRuntime/>
-  <platInit/>
-</attribute>
-
 <attribute>
   <id>ATTR_PROC_MEM_TO_USE</id>
   <targetType>TARGET_TYPE_PROC_CHIP</targetType>