IntelliJ IDEA 13.1.0 Web Help

To delete one or more components
  1. Select one or more components in the Form Workspace or in the Components Treeview.
  2. Press DeleteDeleteDeleteDeleteDelete or Ctrl+DDeleteDeleteDeleteDeleteDelete, Backspace or Command BackspaceDelete, Backspace or Command BackspaceDelete, Backspace or Command Backspace.

See Also

Reference:

Web Resources: