[Examples] Remove FileList references [skip ci]

Closes #901

examples/Example.podspec

@@ -71,24 +71,17 @@ Pod::Spec.new do |s|
   # added to the Pods project. If the pattern is a directory then the
   # path will automatically have '*.{h,m,mm,c,cpp}' appended.
   #
-  # Alternatively, you can use the FileList class for even more control
-  # over the selected files.
-  # (See http://rake.rubyforge.org/classes/Rake/FileList.html.)
-  #
   s.source_files = 'Classes', 'Classes/**/*.{h,m}'
 
   # A list of resources included with the Pod. These are copied into the
   # target bundle with a build phase script.
   #
-  # Also allows the use of the FileList class like `source_files does.
-  #
   # s.resource  = "icon.png"
   # s.resources = "Resources/*.png"
 
   # A list of paths to preserve after installing the Pod.
   # CocoaPods cleans by default any file that is not used.
   # Please don't include documentation, example, and test files.
-  # Also allows the use of the FileList class like `source_files does.
   #
   # s.preserve_paths = "FilesToSave", "MoreFilesToSave"