Prepare for icon removal from core

[NotMyFault]

cc @timja according to the RPU you're not listed as developer, but I've seen you published a release earlier this year 👀

[codecov]

Codecov Report

Merging #67 (bbf9684) into master (b1afe8f) will not change coverage.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##             master      #67   +/-   ##
=========================================
  Coverage     43.66%   43.66%           
  Complexity      190      190           
=========================================
  Files            18       18           
  Lines          1255     1255           
  Branches        192      192           
=========================================
  Hits            548      548           
  Misses          643      643           
  Partials         64       64           

Impacted Files	Coverage Δ
...ain/java/hudson/plugins/plot/MatrixPlotAction.java	42.10% <0.00%> (ø)
src/main/java/hudson/plugins/plot/PlotAction.java	30.76% <0.00%> (ø)

---

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 b1afe8f...bbf9684. Read the comment docs.

[timja]

cc @timja according to the RPU you're not listed as developer, but I've seen you published a release earlier this year 👀

yeah i removed myself as it was just an emergency release and I didn't want to have anything to do with this plugin, guess I can do it for this