remove VS2013 build

5 jobs for master in 7 minutes and 21 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #100835
IPOPT3129 VS2017
CoMISo-VS2017-Qt-5.10.1-x64

00:01:20

passed #100833
Linux
clang-c++11

00:03:29

passed #100832
Linux
gcc-c++11

00:07:20

passed #100834
Apple
macos-c++11

00:02:41

 
  Deploy
passed #100836
trigger_build

00:00:01