progressbar: Remove gradients

gears.color can do the same in better and they are currently broken anyway.

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

lib/awful/widget/progressbar.lua.in

@@ -24,14 +24,6 @@ local data = setmetatable({}, { __mode = "k" })
 -- @param progressbar The progressbar.
 -- @param color The border color to set.
 
---- Set the progressbar foreground color as a gradient.
--- @name set_gradient_colors
--- @class function
--- @param progressbar The progressbar.
--- @param gradient_colors A table with gradients colors. The distance between each color
--- can also be specified. Example: { "#ff0000", "#0000ff" } or { "#ff0000", "#00ff00",
--- "#0000ff", ["#0000ff"] = 10 } to specify blue distance from other colors.
-
 --- Set the progressbar foreground color.
 -- @name set_color
 -- @class function
@@ -75,7 +67,7 @@ local data = setmetatable({}, { __mode = "k" })
 -- @param value The value.
 
 local properties = { "width", "height", "border_color",
-                     "gradient_colors", "color", "background_color",
+                     "color", "background_color",
                      "vertical", "value", "max_value",
                      "ticks", "ticks_gap", "ticks_size" }
 
@@ -114,17 +106,10 @@ local function update(pbar)
         angle = 180
     end
 
-    -- Draw full gradient
-    if data[pbar].gradient_colors then
-        img:draw_rectangle_gradient(border_width, border_width,
-                                    over_drawn_width, over_drawn_height,
-                                    data[pbar].gradient_colors, angle)
-    else
     cr:rectangle(border_width, border_width,
                  over_drawn_width, over_drawn_height)
     cr:set_source(color(data[pbar].color or "#ff0000"))
     cr:fill()
-    end
 
     -- Cover the part that is not set with a rectangle
     if data[pbar].vertical then