cpu,fastmodel: Eliminate the now unnecessary initMemProxies method.

The proxies this method initializes no longer exist, since they're now
created locally.

Change-Id: I5fd1c99fbc00f5057ea8868e91be02d577b1c176
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45909
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/cpu/simple/base.cc

@@ -118,17 +118,6 @@ BaseSimpleCPU::BaseSimpleCPU(const BaseSimpleCPUParams &p)
     }
 }
 
-void
-BaseSimpleCPU::init()
-{
-    BaseCPU::init();
-
-    for (auto tc : threadContexts) {
-        // Initialise the ThreadContext's memory proxies
-        tc->initMemProxies(tc);
-    }
-}
-
 void
 BaseSimpleCPU::checkPcEventQueue()
 {

src/cpu/simple/base.hh

@@ -92,7 +92,6 @@ class BaseSimpleCPU : public BaseCPU
     BaseSimpleCPU(const BaseSimpleCPUParams &params);
     virtual ~BaseSimpleCPU();
     void wakeup(ThreadID tid) override;
-    void init() override;
   public:
     Trace::InstRecord *traceData;
     CheckerCPU *checker;