Removing CRD Webapp from official build tools config

This is the first step in removing the CRD Webapp code.  First we
need to make sure it's disappearance won't cause a problem for
the official builders.  After that we can continue cleaning up
the various bits and bobs which build it and our pNaCl plugin.

BUG=

Change-Id: I7b30bc90e768505518046124ed887b23c09ddd4e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1925353Reviewed-by: Jason Kersey <kerz@chromium.org>
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Commit-Queue: Joe Downing <joedow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#717675}

chrome/tools/build/linux/FILES.cfg

@@ -149,11 +149,6 @@ FILES = [
     'archive': 'pnacl.zip',
   },
   # Remoting files:
-  {
-    'filename': 'remoting-webapp.v2.zip',
-    'buildtype': ['dev', 'official'],
-    'archive': 'remoting-webapp.v2.zip',
-  },
   {
     'filename': 'remoting-me2me-host-linux.zip',
     'buildtype': ['official'],