Remove the :play command.

There's `@' which also accepts a count, and Vim doesn't have :play either.

common/content/events.js

@@ -1146,13 +1146,6 @@ const Events = Module("events", {
                 argCount: "?",
                 completer: function (context) completion.macro(context)
             });
-
-        commands.add(["pl[ay]"],
-            "Replay a recorded macro",
-            function (args) { events.playMacro(args[0]); }, {
-                argCount: "1",
-                completer: function (context) completion.macro(context)
-            });
     },
     mappings: function () {
         mappings.add(modes.all,

common/locale/en-US/index.xml

@@ -312,7 +312,6 @@ This file contains a list of all available commands, mappings and options.
     <dt><ex>:optionusage</ex></dt> <dd>List all options with a short description</dd>
     <dt><ex>:pageinfo</ex></dt> <dd>Show various page information</dd>
     <dt><ex>:pagestyle</ex></dt> <dd>Select the author style sheet to apply</dd>
-    <dt><ex>:play</ex></dt> <dd>Replay a recorded macro</dd>
     <dt><ex>:preferences</ex></dt> <dd>Show &dactyl.host; preferences dialog</dd>
     <dt><ex>:pwd</ex></dt> <dd>Print the current directory name</dd>
     <dt><ex>:qmark</ex></dt> <dd>Mark a URL with a letter for quick access</dd>

common/locale/en-US/repeat.xml

@@ -87,8 +87,7 @@
 
 
 <item>
-    <tags>@ :play</tags>
-    <spec>:pl<oa>ay</oa> <a>a-z0-9</a></spec>
+    <tags>@</tags>
     <spec><oa>count</oa>@<a>a-z0-9</a></spec>
     <description>
         <p>