[ChromeDriver] Cleanup unused windowHandle/minimize and maximize endpoints

Change-Id: I0ee5281937ff58104acc3a1edab1926728cce020
Reviewed-on: https://chromium-review.googlesource.com/c/1345410Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Tatiana Buldina <buldina@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610985}

chrome/test/chromedriver/client/command_executor.py

@@ -92,9 +92,9 @@ class Command(object):
   SET_WINDOW_RECT = (
       _Method.POST, '/session/:sessionId/window/rect')
   MAXIMIZE_WINDOW = (
-      _Method.POST, '/session/:sessionId/window/:windowHandle/maximize')
+      _Method.POST, '/session/:sessionId/window/maximize')
   MINIMIZE_WINDOW = (
-      _Method.POST, '/session/:sessionId/window/:windowHandle/minimize')
+      _Method.POST, '/session/:sessionId/window/minimize')
   FULLSCREEN_WINDOW = (
       _Method.POST, '/session/:sessionId/window/fullscreen')
   CLOSE = (_Method.DELETE, '/session/:sessionId/window')

chrome/test/chromedriver/server/http_handler.cc

@@ -739,12 +739,6 @@ HttpHandler::HttpHandler(
       // Commands of unknown origins.
       //
 
-      // Similar to W3C POST /session/:sessionId/window/minimize.
-      CommandMapping(
-          kPost, "session/:sessionId/window/:windowHandle/minimize",
-          WrapToCommand("MinimizeWindow",
-                        base::BindRepeating(&ExecuteMinimizeWindow))),
-
       CommandMapping(kGet, "session/:sessionId/alert",
                      WrapToCommand("IsAlertOpen",
                                    base::BindRepeating(