chore: remove deadCode

Author: aojunhao123

src/OptionList.tsx

@@ -177,9 +177,6 @@ const OptionList: React.ForwardRefRenderFunction<ReviseRefOptionListProps> = (_,
     }
 
     const isSelected = !checkedKeys.includes(node.key);
-    if (maxCount && isSelected && checkedKeys.length >= maxCount) {
-      return;
-    }
 
     onSelect(node.key, {
       selected: isSelected,

src/TreeSelect.tsx

@@ -509,10 +509,6 @@ const TreeSelect = React.forwardRef<BaseSelectRef, TreeSelectProps>((props, ref)
         // Single mode always set value
         triggerChange([selectedValue], { selected: true, triggerValue: selectedValue }, 'option');
       } else {
-        if (maxCount && selected && rawValues.length >= maxCount) {
-          return;
-        }
-
         let newRawValues = selected
           ? [...rawValues, selectedValue]
           : rawCheckedValues.filter(v => v !== selectedValue);