remove retro remake dispay support and more ui cohesion

Source/hoc-clk/sysmodule/src/board/board.cpp

@@ -193,7 +193,7 @@ namespace board {
         display::DisplayRefreshConfig cfg = { .clkVirtAddr = clkVirtAddr,
                                               .dsiVirtAddr = dsiVirtAddr,
                                               .isLite = (GetConsoleType() == HocClkConsoleType_Hoag),
-                                              .isRetroSUPER = integrations::GetRETROSuperStatus() };
+                                              .isRetroSUPER = false };
         display::Initialize(&cfg);
 
         CacheDfllData();
@@ -270,8 +270,4 @@ namespace board {
         return speedoBracket;
     }
 
-    bool IsUsingRetroSuperDisplay() {
-        return false; /* stub for now. */
-    }
-
 }  // namespace board