Update IntelliJ IDEA 2017.1 EAP to build 171.2272.14

[metyl]

• brew cask audit --download {{cask_file}} is error-free.
• brew cask style --fix {{cask_file}} reports no offenses.
• The commit message includes the cask’s name and version.

I've also reverted #3124 and #3125 because the changes were made in wrong cask files.

[neutric]

@metyl What is the difference between EAP and EAP Next? They both link to the same dmg, in both Professional and Community Edition. To stay consistent with the naming for other JetBrains-related Casks, I'd prefer the naming without next.

[metyl]

@neutric please take a look at #2508.
IntelliJ IDEA has more than one EAP.

[neutric]

I see! That was not immediately obvious from https://www.jetbrains.com/idea/whatsnew/. On top of that, some of their other IDEs are moving the EAP page from Confluence to "next" pages on jetbrains.com. Apologies, I'll know for next time.