This causes some compile errors on platforms where RPC is not available, e.g.
siglent-sds/api.c:25:21: fatal error: rpc/rpc.h: No such file or directory
Surrounding the #include (and later code) with "#if HAVE_RPC" should avoid
these compile errors, but since it's not used at all for now, drop it.
Implement a first version of the driver for the Siglent SDS1000 and
SDS2000 oscilloscopes.
[ gsi: This commit corresponds to git 0228126017e6 of marchelh's tree,
I adjusted the source to closer match the project's coding style. The
conversion was verified by this command:
$ git diff --word-diff=color -w -b <branch>:<dir> <branch>:<dir>
Changes include: Whitespace adjustment, dead code removal, separation
of variable declaration and assignment, alpha-sorted includes. Line
length was not addressed and not every location got adjusted, to keep
the diff minimal and to reduce effort during review of this version. ]