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/minor/cpu.cc

@@ -101,19 +101,10 @@ MinorCPU::init()
 {
     BaseCPU::init();
 
-    if (!params().switched_out &&
-        system->getMemoryMode() != enums::timing)
-    {
+    if (!params().switched_out && system->getMemoryMode() != enums::timing) {
         fatal("The Minor CPU requires the memory system to be in "
             "'timing' mode.\n");
     }
-
-    /* Initialise the ThreadContext's memory proxies */
-    for (ThreadID thread_id = 0; thread_id < threads.size(); thread_id++) {
-        ThreadContext *tc = getContext(thread_id);
-
-        tc->initMemProxies(tc);
-    }
 }
 
 /** Stats interface from SimObject (by way of BaseCPU) */