bashrc: remove -mno-avx from CFLAGS, since it fixes firefox-only bug
git: add -s and -S to commit by default
Revert "git: add -s and -S to commit by default"

This reverts commit f62af15bf8c950659558476223faa3b34a2701ce.
git: fix c alias for testing purposes

Signed-off-by: Aleksey Rybalkin <aleksey@rybalkin.org>