[close #519] remove cdc and br releated components

[marsishandsome]

Signed-off-by: marsishandsome marsishandsome@gmail.com

What problem does this PR solve?

Issue Number: close #519

What is changed and how it works?

move irrelevant code out of client-java repo

• move br component to https://github.com/tikv/migration in [to #519] move br component from tikv java client to this repo migration#73
• move cdc component to some where else

Code changes

• Has exported function/method change

[codecov]

Codecov Report

Merging #563 (03b466f) into master (e89ca5f) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #563      +/-   ##
============================================
- Coverage     32.27%   32.26%   -0.02%     
+ Complexity     1340     1304      -36     
============================================
  Files           279      270       -9     
  Lines         17385    17054     -331     
  Branches       1981     1950      -31     
============================================
- Hits           5611     5502     -109     
+ Misses        11167    10953     -214     
+ Partials        607      599       -8     

Impacted Files	Coverage Δ
src/main/java/io/grpc/netty/WriteQueue.java	74.43% <0.00%> (-13.54%)	⬇️
...ty/handler/codec/http2/Http2ConnectionHandler.java	46.45% <0.00%> (-5.14%)	⬇️
...va/org/tikv/common/region/StoreHealthyChecker.java	69.73% <0.00%> (-3.95%)	⬇️
src/main/java/io/grpc/internal/ClientCallImpl.java	56.34% <0.00%> (-0.49%)	⬇️
src/main/java/org/tikv/common/PDClient.java	59.27% <0.00%> (-0.49%)	⬇️
src/main/java/org/tikv/common/TiSession.java	70.67% <0.00%> (-0.49%)	⬇️
...java/org/tikv/common/region/RegionStoreClient.java	47.85% <0.00%> (-0.31%)	⬇️

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[marsishandsome]

@iosmanthus @zz-jason PTAL

[zz-jason]

LGTM

[zz-jason]

@marsishandsome could you also remove coprocessor-related files?

[marsishandsome]

@marsishandsome could you also remove coprocessor-related files?

This work will be done in another PR.

[iosmanthus]

LGTM

[MengXiangDing]

Hi, where has the cdc component been moved?