Remove redundant cask install from android.sh (donnemartin#75)

Author: Thor

android.sh

@@ -18,12 +18,8 @@ fi
 # Make sure we’re using the latest Homebrew.
 brew update
 
-# Install Cask
-brew install caskroom/cask/brew-cask
-brew tap caskroom/versions
-
 brew cask install --appdir="~/Applications" java
-brew cask install --appdir="~/Applications" Caskroom/versions/intellij-idea-ce
+brew cask install --appdir="~/Applications" intellij-idea-ce
 brew cask install --appdir="~/Applications" android-studio
 
 brew install android-sdk