small cleanups of s_pCurBufferPointer

Source/Core/VideoCommon/Src/DLCache.cpp

@@ -550,8 +550,7 @@ void CompileAndRunDisplayList(u32 address, u32 size, CachedDisplayList *dl)
 							cmd_byte & GX_VAT_MASK,   // Vertex loader index (0 - 7)
 							(cmd_byte & GX_PRIMITIVE_MASK) >> GX_PRIMITIVE_SHIFT,
 							numVertices);
-						u8* EndAddress = VertexManager::s_pCurBufferPointer;
-						u32 Vdatasize = (u32)(EndAddress - StartAddress);
+						u32 Vdatasize = (u32)(VertexManager::s_pCurBufferPointer - StartAddress);
 						if (Vdatasize > 0)
 						{
 							// Compile