Revert "Labs: Add deployment related sudoer rules for svn group"

With the resolution of bug 63028 this alternate behavior for the 
beta environment should not longer be necessary.

This reverts commit 461a59fac5c2661a8a3c8f2f6226d88a345c6744.

Bug: 65548
Change-Id: I040b71432f6abd7099f2f40d62b2f39c670ff227