typing is included in 3.5+, drop separate requirement

[scop]

No description provided.

[reefab]

Thanks for the pull request. It's indeed a good idea to remove this dependency if it's built-in.

Alas, it seems to break the tests: https://travis-ci.org/reefab/foobot_async/builds/566295319

I'll have to dig deeper into this, this should be the same module, just built-in. Not sure why it doesn't work anymore.

[coveralls]

Pull Request Test Coverage Report for Build 13

• 2 of 4 (50.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-2.8%) to 97.222%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
foobot_async/init.py	2	4	50.0%

Totals
Change from base Build 11:	-2.8%
Covered Lines:	70
Relevant Lines:	72

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 13

• 2 of 4 (50.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-2.8%) to 97.222%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
foobot_async/init.py	2	4	50.0%

Totals
Change from base Build 11:	-2.8%
Covered Lines:	70
Relevant Lines:	72

---

💛 - Coveralls

[scop]

The failure doesn't seem to have anything directly to do with typing; it's just that DEFAULT_TIMEOUT is no longer a float in aiohttp >= 3.3. Anyway this should be fixed by the addon commit(s) here, Travis is green now.

[matlimatli]

Any progress on this? The now obsolete dependency on typing seems to be causing some trouble with the home-assistant tox setup in some cases.

[reefab]

Sorry for having dropped this PR.

I've uploaded a new release that drops the typing requirement, ups the aiohttp and now officially supports python 3.7 and 3.8.