remove obsolete ssh_wait_timeout from examples

examples/alicloud/local/centos.json

@@ -37,7 +37,7 @@
       "ssh_password": "vagrant",
       "ssh_port": 22,
       "ssh_username": "root",
-      "ssh_wait_timeout": "10000s",
+      "ssh_timeout": "10000s",
       "type": "qemu",
       "vm_name": "{{ user `template` }}.raw",      
       "net_device": "virtio-net",

website/source/docs/builders/parallels-iso.html.md

@@ -37,7 +37,7 @@ self-install. Still, the example serves to show the basic configuration:
   "parallels_tools_flavor": "lin",
   "ssh_username": "packer",
   "ssh_password": "packer",
-  "ssh_wait_timeout": "30s",
+  "ssh_timeout": "30s",
   "shutdown_command": "echo 'packer' | sudo -S shutdown -P now"
 }
 ```

website/source/docs/builders/parallels-pvm.html.md

@@ -33,7 +33,7 @@ the settings here.
   "source_path": "source.pvm",
   "ssh_username": "packer",
   "ssh_password": "packer",
-  "ssh_wait_timeout": "30s",
+  "ssh_timeout": "30s",
   "shutdown_command": "echo 'packer' | sudo -S shutdown -P now"
 }
 ```

website/source/docs/builders/qemu.html.md

@@ -47,7 +47,7 @@ to files, URLS for ISOs and checksums.
       "ssh_username": "root",
       "ssh_password": "s0m3password",
       "ssh_port": 22,
-      "ssh_wait_timeout": "30s",
+      "ssh_timeout": "30s",
       "vm_name": "tdhtest",
       "net_device": "virtio-net",
       "disk_interface": "virtio",