Get rid of unnecessary Flutter binding assertions in tests

[vitusortner]

No description provided.

[codecov]

Codecov Report

Merging #337 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #337   +/-   ##
========================================
  Coverage    81.43%   81.43%           
========================================
  Files           59       59           
  Lines         1503     1503           
========================================
  Hits          1224     1224           
  Misses         279      279           

Flag	Coverage Δ
#floor	81.43% <ø> (ø)
#floor_generator	81.09% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 527b0cb...3779e50. Read the comment docs.

[mqus]

After integrating type converters and embeddable objects, the API surface won't change until after 1.0.

I'm not really sure about the API surface not changing (see Transactions instead of Database in #81) but I agree that those are pretty minor (and also not really part of this PR)

[vitusortner]

My intention was to give an overview of which big features are being developed right now and thus, will go into the 1.0 release. We could look into defining a more detailed list in the form of a roadmap. This might also give us a better overview of the current and future state of the library.