[ISSUE #927] fix processQueue remove offset

[0daypwn]

What is the purpose of the change

close #927

Brief changelog

change putMessage order

1. put message to map
2. put message to channel

Verifying this change

XXXX

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[codecov-commenter]

Codecov Report

Merging #928 (1c4749e) into master (92515f7) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #928   +/-   ##
=======================================
  Coverage   23.61%   23.61%           
=======================================
  Files          52       52           
  Lines        7170     7170           
=======================================
  Hits         1693     1693           
  Misses       5247     5247           
  Partials      230      230           

Impacted Files	Coverage Δ
consumer/process_queue.go	0.00% <0.00%> (ø)

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[ShannonDing]

LGTM