hterm: simplify focus tests slightly
hterm: simplify focus tests slightly

These closing brackets aren't needed and just confuse me.

Change-Id: I3d8a49e372a5bd147dac6f49f320a628ee87abb1
Reviewed-on: https://chromium-review.googlesource.com/798356
Reviewed-by: Brandon Gilmore <adbfbaf7e4f927b45ce8ad3e5043a632414a833b@google.com>
Tested-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>

chromium/hterm,chromium/hterm,chromium/hterm,chromium/hterm