Removed official/yield.lua since it was only required for lua API 3.x and less (darktable 2.0 and before). Removed require from scripts that had included it.

official/generate_image_txt.lua

@@ -37,7 +37,6 @@ USAGE
 local dt = require "darktable"
 local du = require "lib/dtutils"
 require "darktable.debug"
-require "official/yield"
 
 du.check_min_api_version("2.1.0", "generate_image_txt") 
 

official/selection_to_pdf.lua

@@ -35,7 +35,6 @@ Plugin allows you to choose how many thumbnails you need per row
 ]]
 local dt = require "darktable"
 local du = require "lib/dtutils"
-require "official/yield"
 
 du.check_min_api_version("2.0.0", "selection_to_pdf")
 

official/yield.lua

@@ -1,42 +0,0 @@
---[[
-    This file is part of darktable,
-    Copyright 2016 by Tobias Jakobs.
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-]]
---[[
-darktable yield compatibility script
-
-USAGE
-* require this script from your main Lua file in the first line
-
-]]
-local dt = require "darktable"
-local yield_orig = coroutine.yield
-
-if (dt.configuration.api_version_major < 4) then
-  dt.control = {}
-  dt.control.execute = function(command)
-    yield_orig("RUN_COMMAND", command)
-  end
-  dt.control.read = function(command)
-    yield_orig("FILE_READABLE", command)
-  end
-  dt.control.sleep = function(command)
-    yield_orig("WAIT_MS", command)
-  end
-end
-
--- vim: shiftwidth=2 expandtab tabstop=2 cindent syntax=lua
--- kate: hl Lua;