ptserver: Remove redundant braces

ptserver: Remove redundant braces

Doing if ((a==b)) is unecessary. It's also potentially dangerous, as
that's the syntax required to do assignment within an if statement.
clang now issues warnings (errors in -Werror mode) when it encounters
these.

Remove pointless braces from ptserver to make clang happy.

Change-Id: I1bf1698b1d12f8228e0456d3d2dff4439879cfba
Reviewed-on: http://gerrit.openafs.org/7080
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>