--- xnu/xnu-792.10.96/iokit/Kernel/IOPMchangeNoteList.cpp
+++ xnu/xnu-201.5/iokit/Kernel/IOPMchangeNoteList.cpp
@@ -21,7 +21,6 @@
  */
 #include <IOKit/pwr_mgt/IOPM.h>
 #include <IOKit/pwr_mgt/IOPMchangeNoteList.h>
-#include <IOKit/pwr_mgt/IOPowerConnection.h>
 
 #define super OSObject
 OSDefineMetaClassAndStructors(IOPMchangeNoteList,OSObject)
@@ -105,13 +104,6 @@
 
 IOReturn IOPMchangeNoteList::releaseHeadChangeNote ( void )
 {
-    IOPowerConnection *tmp;
-
-    if((tmp = changeNote[firstInList].parent)) {
-       changeNote[firstInList].parent = 0;
-       tmp->release();
-    }
-
     changeNote[firstInList].flags = IOPMNotInUse;
     firstInList = increment(firstInList);
     return IOPMNoErr;
@@ -129,13 +121,6 @@
 
 IOReturn IOPMchangeNoteList::releaseTailChangeNote ( void )
 {
-    IOPowerConnection *tmp;
-    
-    if((tmp = changeNote[firstInList].parent)) {
-       changeNote[firstInList].parent = 0;
-       tmp->release();
-    }
-
     firstUnused = decrement(firstUnused);
     changeNote[firstUnused].flags = IOPMNotInUse;
     return IOPMNoErr;