Removed Cmd-K as a keybinding for clearing the terminal.

I hope to be able to restore this, but right now it conflicts with a whole slew of keybindings in Atom on the Mac.

Author: jsmecham

keymaps/terminal.json

@@ -4,7 +4,6 @@
   },
   "terminal-view": {
     "cmd-c": "terminal:copy",
-    "cmd-v": "terminal:paste",
-    "cmd-k": "terminal:clear"
+    "cmd-v": "terminal:paste"
   }
 }