add shit

documentation/error_codes.md

@@ -4,12 +4,3 @@
 3. Current low
 4. Current high
 
-else if (voltage_low) {
-      display_error_code(1);
-    } else if (voltage_high){
-      display_error_code(2);
-    } else if (current_low) {
-      display_error_code(3);
-    } else if (current_high){
-      display_error_code(4);
-    }