UI: Center the Status Bar Progress Text

This patch horizontally centers the text inside the progress bar
widget. It is currently left-aligned and offset to the middle, which
doesn't center properly.

see D11205 for details and examples.

Differential Revision: https://developer.blender.org/D11205

Reviewed by Julian Eisel

source/blender/editors/interface/interface.c

@@ -4106,7 +4106,6 @@ static uiBut *ui_def_but(uiBlock *block,
                 UI_BTYPE_BLOCK,
                 UI_BTYPE_BUT_MENU,
                 UI_BTYPE_SEARCH_MENU,
-                UI_BTYPE_PROGRESS_BAR,
                 UI_BTYPE_DATASETROW,
                 UI_BTYPE_POPOVER)) {
     but->drawflag |= (UI_BUT_TEXT_LEFT | UI_BUT_ICON_LEFT);

source/blender/editors/interface/interface_widgets.c

@@ -3720,10 +3720,6 @@ static void widget_progressbar(
   /* "slider" bar color */
   copy_v3_v3_uchar(wcol->inner, wcol->item);
   widgetbase_draw(&wtb_bar, wcol);
-
-  /* raise text a bit */
-  rect->xmin += (BLI_rcti_size_x(&rect_prog) / 2);
-  rect->xmax += (BLI_rcti_size_x(&rect_prog) / 2);
 }
 
 static void widget_datasetrow(