移除binlog2sql插件支持

[hhyo]

项目内集成了两套的binlog解析插件，参考 #1314 的对比，my2sql优势更明显，解析覆盖范围也更广，故没有必要继续支持binlog2sql，进行移除处理

[codecov]

Codecov Report

Merging #1636 (97aeed2) into master (7f4dc22) will decrease coverage by 0.16%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1636      +/-   ##
==========================================
- Coverage   76.02%   75.85%   -0.17%     
==========================================
  Files          92       91       -1     
  Lines       14319    14138     -181     
==========================================
- Hits        10886    10725     -161     
+ Misses       3433     3413      -20     

Impacted Files	Coverage Δ
sql/models.py	96.56% <ø> (ø)
sql/notify.py	88.96% <ø> (+1.15%)	⬆️
sql/plugins/tests.py	100.00% <ø> (ø)
sql/urls.py	100.00% <ø> (ø)
sql/views.py	67.36% <ø> (-0.34%)	⬇️
sql/binlog.py	85.38% <100.00%> (+2.52%)	⬆️
sql/tests.py	98.95% <100.00%> (-0.03%)	⬇️

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[ayers-ltd]

my2sql 没有BINLOG_INFO 的时间展示，在定位binlog 文件的时候很不直观
binlog2sql 这个就有 BINLOG_INFO 的时间展示，是否可以把这个ui 加上

[nick2wang]

my2sql 没有BINLOG_INFO 的时间展示，在定位binlog 文件的时候很不直观 binlog2sql 这个就有 BINLOG_INFO 的时间展示，是否可以把这个ui 加上

目前没法做，my2sql只有在输出到文件的时候才有时间和binlog position信息