Fix OrdersEA_Smart_Grid compile errors

- Removed WinUser32.mqh include (path issues)
- Removed IndicatorRelease calls (MT5 only function)
- MT4 doesn't require explicit indicator cleanup

OrdersEA_Smart_Grid.mq4

@@ -8,7 +8,7 @@
 #property version   "3.0"
 #property strict
 
-#include <WinUser32.mqh>
+// WinUser32.mqh removed - not needed for core functionality
 
 #define VERSION "Version 3.0 Smart Grid"
 #define MAX_TRADES 600
@@ -324,9 +324,7 @@ int OnInit()
 void OnDeinit(const int reason)
   {
    // Cleanup indicators
-   if(RSICurrent != 0) IndicatorRelease(RSICurrent);
-   if(ADXHandle != 0) IndicatorRelease(ADXHandle);
-   if(ATRHandle != 0) IndicatorRelease(ATRHandle);
+   // MT4 doesn't require explicit indicator release
    
    if(logId>=0)
       FileClose(logId);