Remove FOV adjustment with Alt + mouse wheel in the 3D editor

This shortcut got in the way when using the Maya navigation scheme,
and also when using the slow freelook modifier (regardless of
navigation scheme).

editor/plugins/node_3d_editor_plugin.cpp

@@ -1386,25 +1386,17 @@ void Node3DEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
 		const real_t zoom_factor = 1 + (ZOOM_FREELOOK_MULTIPLIER - 1) * b->get_factor();
 		switch (b->get_button_index()) {
 			case MouseButton::WHEEL_UP: {
-				if (b->is_alt_pressed()) {
-					scale_fov(-0.05);
+				if (is_freelook_active()) {
+					scale_freelook_speed(zoom_factor);
 				} else {
-					if (is_freelook_active()) {
-						scale_freelook_speed(zoom_factor);
-					} else {
-						scale_cursor_distance(1.0 / zoom_factor);
-					}
+					scale_cursor_distance(1.0 / zoom_factor);
 				}
 			} break;
 			case MouseButton::WHEEL_DOWN: {
-				if (b->is_alt_pressed()) {
-					scale_fov(0.05);
+				if (is_freelook_active()) {
+					scale_freelook_speed(1.0 / zoom_factor);
 				} else {
-					if (is_freelook_active()) {
-						scale_freelook_speed(1.0 / zoom_factor);
-					} else {
-						scale_cursor_distance(zoom_factor);
-					}
+					scale_cursor_distance(zoom_factor);
 				}
 			} break;
 			case MouseButton::RIGHT: {