Update text explaining that contact doesn't support removable drives.

3 jobs for !1506 with 2105-update-feature-not-supported-text in 10 minutes and 8 seconds (queued for 9 seconds)
latest detached
Status Job ID Name Coverage
  Test
passed #10865
test

00:10:08

 
  Optional Tests
manual #10866
kvm allowed to fail manual
android test
manual #10867
allowed to fail manual
bridge test