Remove integration sync test

[asaj]

Description

Remove the test that checks whether or not we can sync with integration. This test is frequently broken as we do not update integration nightly, and we make breaking changes frequently.

Tested

Not tested

Other changes

None

[codecov]

Codecov Report

Merging #1681 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1681      +/-   ##
==========================================
- Coverage   74.42%   74.38%   -0.04%     
==========================================
  Files         279      279              
  Lines        7573     7566       -7     
  Branches      949      663     -286     
==========================================
- Hits         5636     5628       -8     
- Misses       1823     1824       +1     
  Partials      114      114

Flag	Coverage Δ
#mobile	74.38% <ø> (-0.04%)	⬇️

Impacted Files	Coverage Δ
packages/mobile/src/localCurrency/selectors.ts	65.51% <0%> (-9.49%)	⬇️

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