remove attribution headers

- attribution can be seen via the git log/git blame/github history
- adding it in the files is unnecessary noise and inconsistent between files

lib/rules/assertion-before-screenshot.js

@@ -1,8 +1,3 @@
-/**
- * @fileoverview Assert on the page state before taking a screenshot, so the screenshot is consistent
- * @author Luke Page
- */
-
 'use strict'
 
 const assertionCommands = [

lib/rules/no-assigning-return-values.js

@@ -1,8 +1,3 @@
-/**
- * @fileoverview Prevent assigning return value of cy calls
- * @author Elad Shahar
- */
-
 'use strict'
 
 // safely get nested object property

lib/rules/no-force.js

@@ -1,8 +1,3 @@
-/**
- * @fileoverview Disallow using of \'force: true\' option for click and type calls
- * @author Alex Kuznetsov
- */
-
 'use strict'
 
 //------------------------------------------------------------------------------

lib/rules/no-unnecessary-waiting.js

@@ -1,8 +1,3 @@
-/**
- * @fileoverview Prevent waiting for arbitrary time periods
- * @author Elad Shahar
- */
-
 'use strict'
 
 module.exports = {

lib/rules/require-data-selectors.js

@@ -1,7 +1,3 @@
-/**
- * @fileoverview Use data-* attribute selectors instead of classes or tag names
- * @author Sandeep Baldawa
- */
 'use strict'
 
 module.exports = {