docs: remove methods invoking the callback repeatedly from promisification.md (#15951)

docs/api/promisification.md

@@ -10,7 +10,6 @@ When a majority of affected functions are migrated, this flag will be enabled by
 
 - [ ] [app.getFileIcon(path[, options], callback)](https://github.com/electron/electron/blob/master/docs/api/app.md#getFileIcon)
 - [ ] [app.importCertificate(options, callback)](https://github.com/electron/electron/blob/master/docs/api/app.md#importCertificate)
-- [ ] [win.hookWindowMessage(message, callback)](https://github.com/electron/electron/blob/master/docs/api/browser-window.md#hookWindowMessage)
 - [ ] [request.write(chunk[, encoding][, callback])](https://github.com/electron/electron/blob/master/docs/api/client-request.md#write)
 - [ ] [request.end([chunk][, encoding][, callback])](https://github.com/electron/electron/blob/master/docs/api/client-request.md#end)
 - [ ] [contentTracing.getCategories(callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#getCategories)
@@ -30,8 +29,6 @@ When a majority of affected functions are migrated, this flag will be enabled by
 - [ ] [dialog.showSaveDialog([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showSaveDialog)
 - [ ] [dialog.showMessageBox([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showMessageBox)
 - [ ] [dialog.showCertificateTrustDialog([browserWindow, ]options, callback)](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showCertificateTrustDialog)
-- [ ] [globalShortcut.register(accelerator, callback)](https://github.com/electron/electron/blob/master/docs/api/global-shortcut.md#register)
-- [ ] [globalShortcut.registerAll(accelerators, callback)](https://github.com/electron/electron/blob/master/docs/api/global-shortcut.md#registerAll)
 - [ ] [inAppPurchase.purchaseProduct(productID, quantity, callback)](https://github.com/electron/electron/blob/master/docs/api/in-app-purchase.md#purchaseProduct)
 - [ ] [inAppPurchase.getProducts(productIDs, callback)](https://github.com/electron/electron/blob/master/docs/api/in-app-purchase.md#getProducts)
 - [ ] [netLog.stopLogging([callback])](https://github.com/electron/electron/blob/master/docs/api/net-log.md#stopLogging)
@@ -45,9 +42,6 @@ When a majority of affected functions are migrated, this flag will be enabled by
 - [ ] [ses.getBlobData(identifier, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#getBlobData)
 - [ ] [ses.clearAuthCache(options[, callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearAuthCache)
 - [ ] [shell.openExternal(url[, options, callback])](https://github.com/electron/electron/blob/master/docs/api/shell.md#openExternal)
-- [ ] [systemPreferences.subscribeNotification(event, callback)](https://github.com/electron/electron/blob/master/docs/api/system-preferences.md#subscribeNotification)
-- [ ] [systemPreferences.subscribeLocalNotification(event, callback)](https://github.com/electron/electron/blob/master/docs/api/system-preferences.md#subscribeLocalNotification)
-- [ ] [systemPreferences.subscribeWorkspaceNotification(event, callback)](https://github.com/electron/electron/blob/master/docs/api/system-preferences.md#subscribeWorkspaceNotification)
 - [ ] [contents.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#executeJavaScript)
 - [ ] [contents.getZoomFactor(callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#getZoomFactor)
 - [ ] [contents.getZoomLevel(callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#getZoomLevel)
@@ -55,7 +49,6 @@ When a majority of affected functions are migrated, this flag will be enabled by
 - [ ] [contents.unregisterServiceWorker(callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#unregisterServiceWorker)
 - [ ] [contents.print([options], [callback])](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#print)
 - [ ] [contents.printToPDF(options, callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#printToPDF)
-- [ ] [contents.beginFrameSubscription([onlyDirty ,]callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#beginFrameSubscription)
 - [ ] [contents.savePage(fullPath, saveType, callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#savePage)
 - [ ] [webFrame.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-frame.md#executeJavaScript)
 - [ ] [webFrame.executeJavaScriptInIsolatedWorld(worldId, scripts[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-frame.md#executeJavaScriptInIsolatedWorld)