Undo clipboard reading

src/components/BatchTransactionForm.tsx

@@ -173,22 +173,6 @@ const BatchTransactionForm: React.FC<BatchTransactionFormProps> = ({ onClose, on
     setTransactionGroups(groups);
   };
 
-  // Read clipboard on mount
-  useEffect(() => {
-    const readClipboard = async () => {
-      try {
-        const text = await navigator.clipboard.readText();
-        if (text.trim()) {
-          setPastedData(text);
-          handlePaste(text);
-        }
-      } catch (err) {
-        // Clipboard reading failed, ignore silently
-      }
-    };
-    readClipboard();
-  }, []);
-
   const handleAssignJob = (groupIndex: number, jobId: string) => {
     setTransactionGroups(prev => {
       const newGroups = [...prev];