Remove GPU MemoryAccessor (#1423)

* Remove GPU MemoryAccessor

* Update outdated XML doc

* Update more outdated stuff

Ryujinx.Graphics.Gpu/GpuContext.cs

@@ -27,11 +27,6 @@ namespace Ryujinx.Graphics.Gpu
         /// </summary>
         public MemoryManager MemoryManager { get; }
 
-        /// <summary>
-        /// GPU memory accessor.
-        /// </summary>
-        public MemoryAccessor MemoryAccessor { get; }
-
         /// <summary>
         /// GPU engine methods processing.
         /// </summary>
@@ -75,8 +70,6 @@ namespace Ryujinx.Graphics.Gpu
 
             MemoryManager = new MemoryManager(this);
 
-            MemoryAccessor = new MemoryAccessor(this);
-
             Methods = new Methods(this);
 
             GPFifo = new GPFifoDevice(this);