Remove documentation on CMake.

README.md

@@ -23,7 +23,6 @@ http://www.nodegit.org/nodegit/
 Minimum dependencies:
 
 * [Python 2](https://www.python.org/)
-* [CMake >= 2.8](http://www.cmake.org/)
 
 ``` bash
 npm install nodegit
@@ -49,31 +48,26 @@ correctly.
 
 ### Installing dependencies: ###
 
-#### OS X ####
+#### Mac OS X ####
 
-Using Brew:
-
-``` bash
-brew install cmake libzip
-```
+- [Install XCode Command Line Tools](http://railsapps.github.io/xcode-command-line-tools.html)
 
 #### Linux ####
 
 Using APT in Ubuntu:
 
 ``` bash
-sudo apt-get install cmake libzip-dev build-essential
+sudo apt-get install build-essential
 ```
 
 Using Pacman in Arch Linux:
 
 ``` bash
-sudo pacman -S cmake libzip base-devel
+sudo pacman -S base-devel
 ```
 
 #### Windows ####
 
-- [Download and install CMake](http://www.cmake.org/cmake/resources/software.html).
 - [Download and install Python](https://www.python.org/download/windows).
 - [Download and install VS Express](http://www.visualstudio.com/downloads/download-visual-studio-vs#d-express-windows-desktop).