Update CI for Swift 3 only

8 jobs for 1.0-beta1 in 2 minutes and 57 seconds
Status Job ID Name Coverage
  Test
passed #5297
autoscale-linux
linux

00:00:26

passed #5295
xcode8 openswift atbuild atpm
osx

00:00:09

passed #5296
xcode8 openswift atbuild atpm
osxxcode

00:00:06

 
  Package
passed #5298
autoscale-linux
documentation

00:00:41

passed #5302
xcode8 openswift atbuild package-framework atpm
ioscorepackage

00:00:12

passed #5301
autoscale-linux
linuxtoolpackage

00:00:57

passed #5299
xcode8 openswift atbuild package-framework atpm
osxcorepackage

00:00:05

passed #5300
xcode8 openswift atbuild package-homebrew atpm
osxtoolpackage

00:00:15