Remove some unused signals

Part of #37604.

doc/classes/Tree.xml

@@ -410,11 +410,6 @@
 				Emitted when an item is collapsed by a click on the folding arrow.
 			</description>
 		</signal>
-		<signal name="item_custom_button_pressed">
-			<description>
-				Emitted when a custom button is pressed (i.e. in a [constant TreeItem.CELL_MODE_CUSTOM] mode cell).
-			</description>
-		</signal>
 		<signal name="item_edited">
 			<description>
 				Emitted when an item is edited.

doc/classes/Window.xml

@@ -614,6 +614,12 @@
 				This signal can be used to handle window closing, e.g. by connecting it to [method hide].
 			</description>
 		</signal>
+		<signal name="dpi_changed">
+			<description>
+				Emitted when the [Window]'s DPI changes as a result of OS-level changes (e.g. moving the window from a Retina display to a lower resolution one).
+				[b]Note:[/b] Only implemented on macOS.
+			</description>
+		</signal>
 		<signal name="files_dropped">
 			<param index="0" name="files" type="PackedStringArray" />
 			<description>

editor/animation_track_editor.cpp

@@ -2986,7 +2986,6 @@ bool AnimationTrackEdit::can_drop_data(const Point2 &p_point, const Variant &p_d
 	}
 
 	const_cast<AnimationTrackEdit *>(this)->queue_redraw();
-	const_cast<AnimationTrackEdit *>(this)->emit_signal(SNAME("drop_attempted"), track);
 
 	return true;
 }

editor/code_editor.cpp

@@ -670,7 +670,6 @@ void FindReplaceBar::set_text_edit(CodeTextEditor *p_text_editor) {
 void FindReplaceBar::_bind_methods() {
 	ClassDB::bind_method("_search_current", &FindReplaceBar::search_current);
 
-	ADD_SIGNAL(MethodInfo("search"));
 	ADD_SIGNAL(MethodInfo("error"));
 }
 

editor/editor_help.cpp

@@ -2448,10 +2448,6 @@ void FindBar::_notification(int p_what) {
 	}
 }
 
-void FindBar::_bind_methods() {
-	ADD_SIGNAL(MethodInfo("search"));
-}
-
 void FindBar::set_rich_text_label(RichTextLabel *p_rich_text_label) {
 	rich_text_label = p_rich_text_label;
 }

editor/editor_help.h

@@ -72,8 +72,6 @@ protected:
 
 	bool _search(bool p_search_previous = false);
 
-	static void _bind_methods();
-
 public:
 	void set_rich_text_label(RichTextLabel *p_rich_text_label);
 

editor/editor_log.cpp

@@ -360,11 +360,6 @@ void EditorLog::_reset_message_counts() {
 	}
 }
 
-void EditorLog::_bind_methods() {
-	ADD_SIGNAL(MethodInfo("clear_request"));
-	ADD_SIGNAL(MethodInfo("copy_request"));
-}
-
 EditorLog::EditorLog() {
 	save_state_timer = memnew(Timer);
 	save_state_timer->set_wait_time(2);

editor/editor_log.h

@@ -178,7 +178,6 @@ private:
 	void _update_theme();
 
 protected:
-	static void _bind_methods();
 	void _notification(int p_what);
 
 public:

editor/editor_node.cpp

@@ -6467,7 +6467,6 @@ void EditorNode::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_gui_base"), &EditorNode::get_gui_base);
 
 	ADD_SIGNAL(MethodInfo("play_pressed"));
-	ADD_SIGNAL(MethodInfo("pause_pressed"));
 	ADD_SIGNAL(MethodInfo("stop_pressed"));
 	ADD_SIGNAL(MethodInfo("request_help_search"));
 	ADD_SIGNAL(MethodInfo("script_add_function_request", PropertyInfo(Variant::OBJECT, "obj"), PropertyInfo(Variant::STRING, "function"), PropertyInfo(Variant::PACKED_STRING_ARRAY, "args")));

modules/webrtc/webrtc_multiplayer_peer.cpp

@@ -128,7 +128,6 @@ void WebRTCMultiplayerPeer::poll() {
 			// Server connected.
 			connection_status = CONNECTION_CONNECTED;
 			emit_signal(SNAME("peer_connected"), TARGET_PEER_SERVER);
-			emit_signal(SNAME("connection_succeeded"));
 		} else {
 			emit_signal(SNAME("peer_connected"), E);
 		}

modules/websocket/websocket_multiplayer_peer.cpp

@@ -237,7 +237,6 @@ void WebSocketMultiplayerPeer::_poll_client() {
 				}
 				connection_status = CONNECTION_CONNECTED;
 				emit_signal("peer_connected", 1);
-				emit_signal("connection_succeeded");
 			} else {
 				return; // Still waiting for an ID.
 			}

scene/gui/tree.cpp

@@ -5256,7 +5256,6 @@ void Tree::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("empty_clicked", PropertyInfo(Variant::VECTOR2, "position"), PropertyInfo(Variant::INT, "mouse_button_index")));
 	ADD_SIGNAL(MethodInfo("item_edited"));
 	ADD_SIGNAL(MethodInfo("custom_item_clicked", PropertyInfo(Variant::INT, "mouse_button_index")));
-	ADD_SIGNAL(MethodInfo("item_custom_button_pressed"));
 	ADD_SIGNAL(MethodInfo("item_icon_double_clicked"));
 	ADD_SIGNAL(MethodInfo("item_collapsed", PropertyInfo(Variant::OBJECT, "item", PROPERTY_HINT_RESOURCE_TYPE, "TreeItem")));
 	ADD_SIGNAL(MethodInfo("check_propagated_to_item", PropertyInfo(Variant::OBJECT, "item", PROPERTY_HINT_RESOURCE_TYPE, "TreeItem"), PropertyInfo(Variant::INT, "column")));

scene/main/window.cpp

@@ -2344,6 +2344,7 @@ void Window::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("visibility_changed"));
 	ADD_SIGNAL(MethodInfo("about_to_popup"));
 	ADD_SIGNAL(MethodInfo("theme_changed"));
+	ADD_SIGNAL(MethodInfo("dpi_changed"));
 	ADD_SIGNAL(MethodInfo("titlebar_changed"));
 
 	BIND_CONSTANT(NOTIFICATION_VISIBILITY_CHANGED);

scene/resources/bone_map.cpp

@@ -152,7 +152,6 @@ void BoneMap::_validate_bone_map() {
 	} else {
 		bone_map.clear();
 	}
-	emit_signal("retarget_option_updated");
 }
 
 void BoneMap::_bind_methods() {