bash-completion-devel: remove obsolete port

Port was scheduled for removal in e588416

sysutils/bash-completion/Portfile

@@ -5,7 +5,6 @@ PortGroup       github 1.0
 
 github.setup    scop bash-completion 2.8
 epoch           1
-conflicts       bash-completion-devel
 categories      sysutils
 platforms       darwin
 supported_archs noarch
@@ -68,13 +67,3 @@ if {${os.platform} eq "darwin" && ${os.subplatform} eq "macosx"} {
         will be available.
     "
 }
-
-subport bash-completion-devel {
-    PortGroup   obsolete 1.0
-
-    # This port is obsolete and can be removed after 2019-03-27
-
-    epoch 0
-    conflicts
-    replaced_by bash-completion
-}