diff --git a/src/main/java/core/packetproxy/gui/ExtendedTextPane.java b/src/main/java/core/packetproxy/gui/ExtendedTextPane.java
index 6a136354..eded98f7 100644
--- a/src/main/java/core/packetproxy/gui/ExtendedTextPane.java
+++ b/src/main/java/core/packetproxy/gui/ExtendedTextPane.java
@@ -23,7 +23,6 @@
 import java.awt.event.MouseListener;
 import java.util.Arrays;
 import java.util.EventListener;
-import javax.swing.JButton;
 import javax.swing.JTextPane;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
@@ -45,9 +44,7 @@ abstract class ExtendedTextPane extends JTextPane {
 	private static final int TEXT_TRIMMING_SIZE = 300000;
 	private static final int BINARY_TRIMMING_SIZE = 10000; // バイナリデータの表示はテキストデータの表示に比べ大幅に時間がかかることを考慮して設定
 	private static final int DEFAULT_SHOW_SIZE = 2000;
-	private static final int FONT_SIZE = 12;
 	private WrapEditorKit editor = new WrapEditorKit(new byte[]{});
-	private GUIHistoryPanel parentHistory = null;
 	public String prev_text_panel = "";
 	public UndoManager undo_manager = new UndoManager();
 	public BinaryBuffer raw_data = new BinaryBuffer();
@@ -157,7 +154,6 @@ public void mousePressed(MouseEvent e) {
 
 			public void mouseReleased(MouseEvent e) {
 				showDecodedTooltipOnSelectedText();
-				notifySelectedText();
 			}
 		});
 		addKeyListener(new KeyListener() {
@@ -211,25 +207,6 @@ public void setData(byte[] data, boolean trimming) throws Exception {
 		setCaretPosition(0);
 	}
 
-	public void setParentHistory(GUIHistoryPanel parentHistory) {
-		this.parentHistory = parentHistory;
-	}
-
-	public JButton getParentSend() {
-		return parentHistory.getParentSend();
-	}
-
-	private void notifySelectedText() {
-		int position_start = getSelectionStart();
-		int position_end = getSelectionEnd();
-		Range area = Range.of(position_start, position_end);
-		if (area.getLength() == 0 || area.getLength() > 1000) {
-
-			return;
-		}
-		byte[] request = Utils.getSelectedCharacters(data, area.getPositionStart(), area.getPositionEnd());
-	}
-
 	private void showDecodedTooltipOnSelectedText() {
 		int position_start = getSelectionStart();
 		int position_end = getSelectionEnd();
diff --git a/src/main/java/core/packetproxy/gui/GUIHistoryBinary.java b/src/main/java/core/packetproxy/gui/GUIHistoryBinary.java
index a6e8161c..266b9a45 100644
--- a/src/main/java/core/packetproxy/gui/GUIHistoryBinary.java
+++ b/src/main/java/core/packetproxy/gui/GUIHistoryBinary.java
@@ -58,7 +58,6 @@ public JTextPane getTextPane() {
 
 	public GUIHistoryBinary() throws Exception {
 		hex_text = new BinaryTextPane();
-		hex_text.setParentHistory(this);
 		hex_text.addDataChangedListener(this);
 		// hex_text.setLineWrap(true);
 		hex_text.setFont(FontManager.getInstance().getFont());
diff --git a/src/main/java/core/packetproxy/gui/GUIHistoryRaw.java b/src/main/java/core/packetproxy/gui/GUIHistoryRaw.java
index 52b27367..3dde570e 100644
--- a/src/main/java/core/packetproxy/gui/GUIHistoryRaw.java
+++ b/src/main/java/core/packetproxy/gui/GUIHistoryRaw.java
@@ -39,7 +39,6 @@ public JTextPane getTextPane() {
 
 	public GUIHistoryRaw() throws Exception {
 		raw_text = new RawTextPane();
-		raw_text.setParentHistory(this);
 		raw_text.addDataChangedListener(this);
 
 		jsonHighlighter = new JsonSyntaxHighlighter(raw_text.getStyledDocument());