Core: Purge WITH_IMGUI define

src/core/timers.cpp

@@ -2,11 +2,9 @@
 #include "common/log.h"
 #include "common/state_wrapper.h"
 #include "gpu.h"
+#include "imgui.h"
 #include "interrupt_controller.h"
 #include "system.h"
-#ifdef WITH_IMGUI
-#include "imgui.h"
-#endif
 Log_SetChannel(Timers);
 
 Timers g_timers;
@@ -394,7 +392,6 @@ void Timers::UpdateSysClkEvent()
 
 void Timers::DrawDebugStateWindow()
 {
-#ifdef WITH_IMGUI
   static constexpr u32 NUM_COLUMNS = 10;
   static constexpr std::array<const char*, NUM_COLUMNS> column_names = {
     {"#", "Value", "Target", "Sync", "Reset", "IRQ", "IRQRepeat", "IRQToggle", "Clock Source", "Reached"}};
@@ -463,5 +460,4 @@ void Timers::DrawDebugStateWindow()
 
   ImGui::Columns(1);
   ImGui::End();
-#endif
 }