Simplify REALIP method

[ribice]

No description provided.

[codecov]

Codecov Report

Merging #1193 into master will increase coverage by 0.04%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master   #1193      +/-   ##
=========================================
+ Coverage   81.46%   81.5%   +0.04%     
=========================================
  Files          25      25              
  Lines        1915    1914       -1     
=========================================
  Hits         1560    1560              
+ Misses        249     248       -1     
  Partials      106     106

Impacted Files	Coverage Δ
context.go	73.97% <0%> (+0.33%)	⬆️

---

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[codecov]

Codecov Report

Merging #1193 into master will increase coverage by 0.04%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master   #1193      +/-   ##
=========================================
+ Coverage   81.46%   81.5%   +0.04%     
=========================================
  Files          25      25              
  Lines        1915    1914       -1     
=========================================
  Hits         1560    1560              
+ Misses        249     248       -1     
  Partials      106     106

Impacted Files	Coverage Δ
context.go	73.97% <0%> (+0.33%)	⬆️

---

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 688ab2b...648bf02. Read the comment docs.

[im-kulikov]

@vishr can you restart travis?

[im-kulikov]

LGTM (rerun travis)