Setting for "commit message right margin" is gone

I don't see the setting for "Commit message right margin" anymore under "Version control" and can't find it anywhere else:

Has this setting been removed or is it gone by some bug in my installation?

I'm on the latest stable version:

PhpStorm 2017.3.3
Build #PS-173.4301.34, built on January 18, 2018
You have a perpetual fallback license for this version
JRE: 1.8.0_152-release-1024-b11 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0