providers/docker: don't use graceful shutdown [GH-3798]

CHANGELOG.md

@@ -10,6 +10,8 @@ BUG FIXES:
       and should show less stale data. [GH-3808]
   - commands/package: Package with `--base` for VirtualBox doesn't
       crash. [GH-3827]
+  - providers/docker: Never do graceful shutdown, always use
+      `docker stop`. [GH-3798]
   - provisioners/puppet: Fix setting facter vars with Windows
       guests. [GH-3776]
   - guests/freebsd: Properly register the rsync_pre capability

plugins/providers/docker/action.rb

@@ -91,18 +91,7 @@ module VagrantPlugins
               next
             end
 
-            b2.use Call, HasSSH do |env2, b3|
-              if !env2[:result]
-                b3.use Stop
-                next
-              end
-
-              b3.use Call, GracefulHalt, :stopped, :running do |env3, b4|
-                if !env3[:result]
-                  b4.use Stop
-                end
-              end
-            end
+            b2.use Stop
           end
         end
       end