tests/readerhighlight: speedup

Reduce time to run those tests by 74% on my machine (~8.8s → ~2.3s).

spec/unit/readerhighlight_spec.lua

@@ -30,14 +30,11 @@ describe("Readerhighlight module", function()
         -- Reset in case we're called more than once.
         readerui.languagesupport.improveWordSelection:revert()
 
-        UIManager:scheduleIn(1, function()
-            UIManager:close(readerui.dictionary.dict_window)
-            UIManager:close(readerui)
-            -- We haven't torn it down yet
-            ReaderUI.instance = readerui
-            UIManager:quit()
-        end)
-        UIManager:run()
+        UIManager:close(readerui.dictionary.dict_window)
+        UIManager:close(readerui)
+        -- We haven't torn it down yet
+        ReaderUI.instance = readerui
+        UIManager:quit()
     end
     local function highlight_text(readerui, pos0, pos1)
         readerui.highlight:onHold(nil, { pos = pos0 })
@@ -56,14 +53,11 @@ describe("Readerhighlight module", function()
         assert.truthy(UIManager._window_stack[next_slot].widget
                       == readerui.highlight.highlight_dialog)
         readerui.highlight:saveHighlight()
-        UIManager:scheduleIn(1, function()
-            UIManager:close(readerui.highlight.highlight_dialog)
-            UIManager:close(readerui)
-            -- We haven't torn it down yet
-            ReaderUI.instance = readerui
-            UIManager:quit()
-        end)
-        UIManager:run()
+        UIManager:close(readerui.highlight.highlight_dialog)
+        UIManager:close(readerui)
+        -- We haven't torn it down yet
+        ReaderUI.instance = readerui
+        UIManager:quit()
     end
     local function tap_highlight_text(readerui, pos0, pos1, pos2)
         readerui.highlight:onHold(nil, { pos = pos0 })
@@ -74,14 +68,11 @@ describe("Readerhighlight module", function()
         UIManager:close(readerui.highlight.highlight_dialog)
         readerui.highlight:onTap(nil, { pos = pos2 })
         assert.truthy(readerui.highlight.edit_highlight_dialog)
-        UIManager:nextTick(function()
-            UIManager:close(readerui.highlight.edit_highlight_dialog)
-            UIManager:close(readerui)
-            -- We haven't torn it down yet
-            ReaderUI.instance = readerui
-            UIManager:quit()
-        end)
-        UIManager:run()
+        UIManager:close(readerui.highlight.edit_highlight_dialog)
+        UIManager:close(readerui)
+        -- We haven't torn it down yet
+        ReaderUI.instance = readerui
+        UIManager:quit()
     end
 
     describe("highlight for EPUB documents", function()