Remove timezone configuration for brisbane

[atruskie]

Assigning the default timezone to the site as Brisbane (10+) as in (e2435cb)[https://github.com/QutBioacoustics/baw-server/blob/e2435cbe76e0088601fa202cab5ab9abb6c7b75d/config/application.rb#L38] is terrible practice.

It was done to meet time constraints and so that old legacy problems were not a problem.

Removing this assumption will affect #22 and #23

[cofiem]

A user should also be able to set the locale (for dates / times and translations) for their personal profiles.

[cofiem]

Based on tests done while adding site and user time zone settings ( #121 ), removing this setting will not affect accessing audio files.

[atruskie]

Good it won't affect.

Still think this setting should removed/set to UTC anyway as it should now be redundant?

[cofiem]

set to UTC, yes. So, that will be 'server time', users will see things in the time zone they set.