unix: remove _SC_PAGESIZE on linux/sparc64
CL 62111 removed the _SC_PAGESIZE definition from the types_*.go files
but did not re-generate ztypes_linux_sparc64.go. Remove the definition
manually because linux/spar64 is not yet covered by the new Docker-based
build system.
Change-Id: I1ddebc3efa0d9d23c925ca84de31f63a3a883a99
Reviewed-on: https://go-review.googlesource.com/73876
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Tobias Klauser