Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -12,7 +12,6 @@ Before sending your pull requests, make sure you do the following:
     [guidelines](#general-guidelines-and-philosophy-for-contribution).
 -   Changes are consistent with the [Coding Style](#c-coding-style).
 -   Run the [unit tests](#running-unit-tests).
--   Read the [TensorFlow PR Life Cycle](TensorFlow_PR_Life_Cycle.md) document.
 
 ## How to become a contributor and submit your own code
 ![Screen Shot 2022-08-30 at 7 27 04 PM](https://user-images.githubusercontent.com/42785357/187579207-9924eb32-da31-47bb-99f9-d8bf1aa238ad.png)