Remove cowsay, since it's sadly not available in homebrew now.

Author: geerlingguy

README.md

@@ -54,7 +54,6 @@ You can override any of the defaults configured in `default.config.yml` by creat
 
 ```yaml
 homebrew_installed_packages:
-  - cowsay
   - git
   - go
 
@@ -129,7 +128,6 @@ Packages (installed with Homebrew):
   - nvm
   - php
   - ssh-copy-id
-  - cowsay
   - readline
   - openssl
   - pv

default.config.yml

@@ -53,7 +53,6 @@ homebrew_installed_packages:
   - php
   - pngpaste
   - ssh-copy-id
-  - cowsay
   - readline
   - openssl
   - pv

tests/config.yml

@@ -5,7 +5,6 @@ homebrew_installed_packages:
   - gettext
   - sqlite
   - ssh-copy-id
-  - cowsay
   - readline
   - pv
   - wget