Remove outdated luadoc for widgets

Signed-off-by: Uli Schlachter <psychon@znc.in>

luadoc/widget.lua

@@ -1,74 +0,0 @@
---- awesome widget API
--- @author Julien Danjou <julien@danjou.info>
--- @copyright 2008-2009 Julien Danjou
-module("widget")
-
---- Generic widget.
--- @field visible The widget visibility.
--- @field type The widget type. Can only be set using constructor. Type can be either textbox,
--- imagebox or systray.
--- @class table
--- @name widget
-
---- Set the widget buttons. It will receive a press or release event when of this buttons is
--- pressed.
--- @param buttons_table A table with buttons, or nil if you do not want to modify it.
--- @return A table with buttons the widget is listening to.
--- @name buttons
--- @class function
-
---- Get the widget extents, i.e., the size the widgets needs to be drawn.
--- @param -
--- @return A table with x, y, width and height.
--- @name extents
--- @class function
-
---- Textbox widgets.
--- @field text The text to display.
--- @field width The width of the textbox. Set to 0 for auto.
--- @field wrap The wrap mode: word, char, word_char.
--- @field ellipsize The ellipsize mode: start, middle or end.
--- @field border_width The border width to draw around.
--- @field border_color The border color.
--- @field align Text alignment, left, center or right.
--- @field margin Method to pass text margin: a table with top, left, right and bottom keys.
--- @field bg Background color.
--- @field bg_image Background image.
--- @field bg_align Background image alignment, left, center, right, bottom, top or middle
--- @field bg_resize Background resize.
--- @class table
--- @name textbox
-
---- Imagebox widget.
--- @field image The image to display.
--- @field bg The background color to use.
--- @class table
--- @name imagebox
-
---- Systray widget.
--- @class table
--- @name systray
-
---- Add a signal.
--- @param name A signal name.
--- @param func A function to call when the signal is emitted.
--- @name connect_signal
--- @class function
-
---- Remove a signal.
--- @param name A signal name.
--- @param func A function to remove.
--- @name disconnect_signal
--- @class function
-
---- Emit a signal.
--- @param name A signal name.
--- @param ... Various arguments, optional.
--- @name emit_signal
--- @class function
-
---- Get the number of instances.
--- @param no_params luadoc is buggy.
--- @return The number of widget objects alive.
--- @name instances
--- @class function