DVDInterface: Move fast disc speed check to ExecuteReadCommand

This breaks the workaround used for Star Wars: Rouge Leader,
but that problem has gotten a more proper solution in 4.0-4889.

Source/Core/Core/HW/DVDInterface.cpp

@@ -544,19 +544,10 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
 				DVDCommandResult result = ExecuteCommand(
 					m_DICMDBUF[0].Hex, m_DICMDBUF[1].Hex, m_DICMDBUF[2].Hex,
 					m_DIMAR.Hex, m_DILENGTH.Hex, true);
-				if (SConfig::GetInstance().m_LocalCoreStartupParameter.bFastDiscSpeed)
-				{
-					// Make sure fast disc speed performs "instant" reads; in addition
-					// to being used to speed up games, fast disc speed is used as a
-					// workaround for crashes in Star Wars Rogue Leader.
-					TransferComplete(result.interrupt_type, 0);
-				}
-				else
-				{
+
 				// The transfer is finished after a delay
 				CoreTiming::ScheduleEvent((int)result.ticks_until_completion, tc, result.interrupt_type);
 			}
-			}
 		})
 	);
 
@@ -621,6 +612,9 @@ DVDCommandResult ExecuteReadCommand(u64 DVD_offset, u32 output_address,
 	}
 
 	DVDCommandResult result;
+	if (SConfig::GetInstance().m_LocalCoreStartupParameter.bFastDiscSpeed)
+		result.ticks_until_completion = 0;	// An optional hack to speed up loading times
+	else
 		result.ticks_until_completion = SimulateDiscReadTime(DVD_offset, DVD_length);
 
 	if (!g_bDiscInside)

Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_DI.cpp

@@ -67,9 +67,6 @@ IPCCommandResult CWII_IPC_HLE_Device_di::IOCtl(u32 _CommandAddress)
 	                                         BufferOut, BufferOutSize, false);
 	Memory::Write_U32(result.interrupt_type, _CommandAddress + 0x4);
 
-	if (SConfig::GetInstance().m_LocalCoreStartupParameter.bFastDiscSpeed)
-		result.ticks_until_completion = 0;	// An optional hack to speed up loading times
-
 	return { true, result.ticks_until_completion };
 }