Remove CI platform: freebsd/10.4

(cherry picked from commit e6ffc4f89a)

shippable.yml

@@ -47,7 +47,6 @@ matrix:
 
     - env: T=osx/10.11/1
     - env: T=rhel/7.6/1
-    - env: T=freebsd/10.4/1
     - env: T=freebsd/11.1/1
     - env: T=linux/centos6/1
     - env: T=linux/centos7/1
@@ -60,7 +59,6 @@ matrix:
 
     - env: T=osx/10.11/2
     - env: T=rhel/7.6/2
-    - env: T=freebsd/10.4/2
     - env: T=freebsd/11.1/2
     - env: T=linux/centos6/2
     - env: T=linux/centos7/2
@@ -73,7 +71,6 @@ matrix:
 
     - env: T=osx/10.11/3
     - env: T=rhel/7.6/3
-    - env: T=freebsd/10.4/3
     - env: T=freebsd/11.1/3
     - env: T=linux/centos6/3
     - env: T=linux/centos7/3

test/runner/completion/remote.txt

@@ -1,4 +1,3 @@
-freebsd/10.4
 freebsd/11.1
 osx/10.11
 rhel/7.6