fixup mock_function

- remove deprecated function
- remove bad whitespace

spec/spec_helper/mock_function.rb

@@ -9,10 +9,10 @@
 # use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 # the Software, and to permit persons to whom the Software is furnished to do so,
 # subject to the following conditions:
-# 
+#
 # The above copyright notice and this permission notice shall be included in
 # all copies or substantial portions of the Software.
-# 
+#
 # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 # INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
@@ -65,17 +65,6 @@ def expected(*args)
       self.expects(:execute)
     end
 
-    # Use stubbed instead, see readme
-    def stub
-      self.stubs(:call)
-    end
-
-    # Use expected instead, see readme
-    def expect(*args)
-      RSpec::Puppet::Support.clear_cache unless args.include? :keep_cache
-      self.expects(:call)
-    end
-
     private
 
     def parse_options!(options)