remove unnecessary chmod

王权利请求将github/fork/bbodenmiller/rm-chmod合并到master

Created by: bbodenmiller

lib/support/init.d/gitlab was set as executable in the repo as of the 6.1 release so chmod is not needed after that. See https://github.com/gitlabhq/gitlabhq/pull/7586/files#r16885445.

合并请求报告