MEM: Clean-up of Functional/Virtual/TranslatingPort remnants

This patch cleans up forward declarations and a member-function
prototype that still referred to the old FunctionalPort, VirtualPort
and TranslatingPort. There is no change in functionality.

src/cpu/inorder/thread_context.hh

@@ -44,8 +44,6 @@ namespace Kernel {
     class Statistics;
 };
 
-class TranslatingPort;
-
 /**
  * Derived ThreadContext class for use with the InOrderCPU.  It
  * provides the interface for any external objects to access a

src/cpu/o3/thread_context.hh

@@ -40,8 +40,6 @@ namespace Kernel {
     class Statistics;
 };
 
-class TranslatingPort;
-
 /**
  * Derived ThreadContext class for use with the O3CPU.  It
  * provides the interface for any external objects to access a

src/cpu/simple_thread.hh

@@ -58,8 +58,6 @@ class BaseCPU;
 
 class FunctionProfile;
 class ProfileNode;
-class FunctionalPort;
-class PhysicalPort;
 
 namespace TheISA {
     namespace Kernel {
@@ -71,7 +69,6 @@ namespace TheISA {
 
 #include "mem/page_table.hh"
 #include "sim/process.hh"
-class TranslatingPort;
 
 #endif // FULL_SYSTEM