[PATCH 4/5] patman: Drop tools.ToChar() and ToChars()

[Simon Glass]

This is useful anymore, since we always want to call chr() in Python 3.
Drop it and adjust callers to use chr().

Also drop ToChars() which is no-longer used.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 tools/dtoc/fdt.py      |  8 ++++----
 tools/dtoc/test_fdt.py |  2 +-
 tools/patman/tools.py  | 23 -----------------------
 3 files changed, 5 insertions(+), 28 deletions(-)

Applied to u-boot-dm, thanks!