remove unused import in Flowable.java

[ojh102]

remove unused import in Flowable.java

[codecov]

Codecov Report

Merging #6470 into 2.x will increase coverage by 0.07%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                2.x    #6470      +/-   ##
============================================
+ Coverage     98.23%   98.31%   +0.07%     
- Complexity     6294     6296       +2     
============================================
  Files           675      675              
  Lines         45159    45159              
  Branches       6244     6244              
============================================
+ Hits          44364    44398      +34     
+ Misses          251      235      -16     
+ Partials        544      526      -18

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/io/reactivex/Flowable.java	100% <ø> (ø)	567 <0> (ø)	⬇️
...java/io/reactivex/processors/PublishProcessor.java	98.19% <0%> (-1.81%)	42% <0%> (-1%)
...rnal/operators/flowable/FlowableFlatMapSingle.java	92.93% <0%> (-1.64%)	2% <0%> (ø)
...activex/internal/schedulers/ExecutorScheduler.java	95.97% <0%> (-1.01%)	10% <0%> (ø)
.../operators/observable/ObservableFlatMapSingle.java	88.8% <0%> (-0.75%)	2% <0%> (ø)
...ain/java/io/reactivex/subjects/UnicastSubject.java	99.36% <0%> (-0.64%)	64% <0%> (-1%)
...internal/operators/flowable/FlowableObserveOn.java	96.93% <0%> (-0.56%)	3% <0%> (ø)
...rnal/operators/observable/ObservableSwitchMap.java	94.68% <0%> (-0.54%)	3% <0%> (ø)
...va/io/reactivex/processors/MulticastProcessor.java	98.23% <0%> (-0.45%)	83% <0%> (-1%)
...ivex/internal/operators/parallel/ParallelJoin.java	94.44% <0%> (-0.38%)	3% <0%> (ø)
... and 22 more

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