Revert "sec: deprecate some webPreference defaults to be secure-by-default (#14284)" (#14380)

This reverts commit 66d6ba8689.

lib/browser/api/web-contents.js

@@ -293,10 +293,6 @@ WebContents.prototype._init = function () {
     ipcMain.emit(channel, event, ...args)
   })
 
-  this.on('-deprecated-default', function (event, key, oldDefault, newDefault) {
-    deprecate.warnDefault(key, oldDefault, newDefault)
-  })
-
   // Handle context menu action request from pepper plugin.
   this.on('pepper-context-menu', function (event, params, callback) {
     // Access Menu via electron.Menu to prevent circular require.

lib/common/api/deprecate.js

@@ -31,12 +31,6 @@ deprecate.warn = (oldName, newName) => {
   return deprecate.log(`'${oldName}' is deprecated. Use '${newName}' instead.`)
 }
 
-deprecate.warnDefault = (propName, oldDefault, newDefault) => {
-  return deprecate.log(`The default value of '${propName}' is changing from \
-'${oldDefault}' to '${newDefault}' in a future release. If you want to keep \
-the current value, please explicitly declare the property.`)
-}
-
 let deprecationHandler = null
 
 // Print deprecation message.

lib/renderer/security-warnings.js

@@ -61,13 +61,6 @@ const getIsRemoteProtocol = function () {
  * @returns {boolean} Is a CSP with `unsafe-eval` set?
  */
 const isUnsafeEvalEnabled = function () {
-  // FIXME(MarshallOfSound): Although not exactly true, this warning is incorrect
-  // when contextIsolation is enabled
-  // FIXME(MarshallOfSound): Once remote issues have gone away we can remove
-  // the falsey check
-  const prefs = getWebPreferences()
-  if (prefs && prefs.contextIsolation) return false
-
   try {
     //eslint-disable-next-line
     new Function('');