Undo modernization of clang-format.
Undo modernization of clang-format.

Some of the modern flag names aren't supported by XcodeClangFormat,
and the actual formatting behavior is the same either way.

This reverts the changes from http://review.skia.org/576096.
(Including one functional change, which I don't believe has gotten
any consensus from the team.)

Change-Id: Ib7094a6ae82d2d51148a4b919aaf4113d8b86e47
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/577202
Auto-Submit: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
Commit-Queue: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
Reviewed-by: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>

google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia