fixes #197

[dparker18]

Description

Fixes #197

start_client was getting stuck on calling await self.topics.wait_for_subscriptions(). In client only mode would there ever be valid subscriptions? If not, the changed line could be removed entirely

[codecov-commenter]

Codecov Report

Merging #198 (a7cbf54) into master (835f37e) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #198   +/-   ##
=======================================
  Coverage   94.51%   94.51%           
=======================================
  Files         100      100           
  Lines       10631    10631           
  Branches     1202     1202           
=======================================
  Hits        10048    10048           
  Misses        514      514           
  Partials       69       69           

Impacted Files	Coverage Δ
faust/app/base.py	99.49% <100.00%> (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 835f37e...a7cbf54. Read the comment docs.